Minecraft Intermediate Survival Guide: Nether, Enchanting and Diamonds

You’ve survived your first night, built a basic base, and maybe stumbled into your first cave with an iron pickaxe in hand. Now what? The jump from beginner to competent Minecraft player isn’t gradual — it hits like a wall. Suddenly the game expects you to navigate a dimension made of fire, understand a magic table that punishes bad decisions, and go toe-to-toe with mobs that can one-shot you if you’re careless.

This guide covers the real meat of Minecraft progression: diamonds, enchanting, the Nether, Bastion Remnants, ancient debris, and the Trial Chambers added in 1.21. If you’re brand new to Minecraft, start with the Minecraft Beginner’s Guide first. Once you’ve read this guide, the Advanced Player’s Guide covers everything from Netherite optimization to the End dimension in detail.

Where you should be before this guide

This guide assumes you’ve cleared these checkboxes:

• Full iron armor and tools (or better)
• A stable base with crafting table, furnace, chests, and bed
• Basic food source — farm, animal pen, or reliable hunting area
• At least 16 iron ingots in reserve
• Comfortable navigating caves at night

If any of those aren’t ticked yet, get them done first. Entering the Nether in leather armor is a very fast way to lose everything.

Finding diamonds in Minecraft 1.21

Diamonds are the gatekeeper. You need them for enchanting (sort of), for crafting the gear that makes everything else survivable, and for upgrading to Netherite later. The ore distribution system was overhauled in 1.18 and hasn’t changed significantly since — so everything here applies to 1.21 and beyond.

The best Y level for diamonds

Diamond ore generates between Y -64 and Y 16, but spawn rates are not evenly distributed. The complete diamond mining guide goes deep on the numbers, but the short version is this:

Press F3 to open the debug screen (Java Edition) or check coordinates in Bedrock Settings. Your Y coordinate is displayed in the left column. Mine at -54 if you’re cautious; mine at -59 if you’re confident and have a fire resistance potion ready.

Strip mining versus cave diving

Strip mining — cutting parallel 2-block-tall tunnels with branches every 2-3 blocks off a main corridor — is the most reliable method. It’s slow and boring, but it works. The reason it outperforms cave exploration isn’t obvious: Minecraft suppresses diamond veins that would be exposed to air. Large natural caves reduce the diamond spawn rate in the blocks immediately surrounding them. Strip mining through solid rock sidesteps this entirely.

That said, cave diving at deep levels isn’t worthless. A natural cave system at Y -50 to -60 will still expose some diamond ore on its walls, and you’re covering ground fast. Use caves for the journey down; use strip mining once you’re at depth. Bring a water bucket and at least 64 torches.

Why Fortune III changes everything

Without Fortune, each diamond ore drops exactly 1 diamond. With Fortune III on your pickaxe, each ore has a chance to drop up to 4 diamonds, with an average of around 2.2 per block. On a decent 30-minute mining run, that’s the difference between 12 diamonds and 25+.

This is important: do NOT mine diamond ore with a regular pickaxe if you can help it. Mine around it, mark the location, and come back once you have Fortune III. Even Fortune I or II is better than nothing. Silk Touch lets you pick up the ore block itself so you can mine it later — a valid option if you’re still working toward Fortune III.

Building your enchanting setup

The enchanting table is one of Minecraft’s most misunderstood systems. Players often sit at a bare table wondering why they’re getting weak enchantments, not realising the table is operating at maybe 20% capacity.

How the enchanting table works

An enchanting table on its own maxes out at level 8 enchantments — nearly useless for endgame gear. The table draws power from bookshelves placed within a 5×5×3 area around it, with one block of air between the shelf and the table. Each bookshelf adds 2 enchanting levels. You need exactly 15 bookshelves to unlock level 30 — the maximum and what you should be aiming for.

The layout: place the table in the centre of a 5×5 floor space, then ring it with bookshelves one block away (leaving the corners open or filled, it doesn’t matter, as long as nothing blocks line-of-sight between shelf and table). A carpet on top of a bookshelf does block the bonus, so keep the shelves clean.

Enchanting costs 1-3 lapis lazuli plus experience levels per enchant. At level 30, you’ll spend 3 lapis and 1 experience level for the lowest-tier slot, or 3 experience levels for the highest slot. The experience cost is relatively low — the big investment is the experience levels you need in your pool to unlock higher-level enchants.

Getting lapis lazuli

Lapis spawns most densely around Y -2, though it generates across a wide range. Mine a few chunks at depth and you’ll collect more than you need. Always keep at least a stack in your chest — running out mid-session is frustrating. Fortune III on a pickaxe will massively increase your lapis yield, same as diamonds.

Mending — the enchantment you can’t get at the table

Mending is a treasure enchantment, which means it never appears as an option on the enchanting table. You can only get it by:

• Fishing (best early method — Luck of the Sea III on a rod helps)
• Trading with a Librarian villager (reliable but requires a trading hall setup)
• Looting dungeon/structure chests

Mending repairs the item it’s on whenever you pick up experience orbs. A Mending pickaxe repairs itself as you mine. A Mending sword repairs itself in combat. Getting Mending on your best tools early is the single most valuable thing you can do — it basically makes those items last forever. Read the full enchanting guide for detailed mechanics on book combining and the prior work penalty.

Best enchantments for your diamond gear

The enchantments tier list covers every enchantment in the game. For intermediate players, focus on the essentials first.

Armor enchantments

Note: Protection IV cannot be stacked with Blast Protection, Fire Protection, or Projectile Protection on the same piece. Pick Protection for general use — it covers everything at a slightly lower rate than specialized variants.

Weapon and tool enchantments

Smart anvil combinations

Every time you combine books or enchant an item on an anvil, you increase its “prior work penalty” — the XP cost for future repairs and combinations. This doubles each time. After 5-6 combinations, the cost becomes “Too Expensive.” Plan your combination order carefully: start with the most expensive (rarest, highest level) enchantment books, then work down. Combine two books together before applying to the item where possible, because books have no prior work penalty of their own.

The golden rule: always enchant diamond tools first, then upgrade them to Netherite at the Smithing Table. Upgrading preserves all enchantments and costs no experience.

Entering the Nether

The Nether is simultaneously the most dangerous and most useful dimension in Minecraft. You need it for blaze rods (Eyes of Ender, brewing stands, potions), Nether wart (virtually every potion recipe), ancient debris (Netherite), and Bastion loot. There’s no avoiding it.

If you haven’t built your portal yet, the Nether Portal guide walks through construction from scratch.

What to bring

Minimum kit for a first Nether run:

• Full iron or diamond armor — leather will get you killed by Piglins immediately
• At least one piece of gold armor (a gold helmet or gold boots works) — keeps Piglins neutral on sight
• Sword with at least Sharpness II or better
• Bow with plenty of arrows (Blazes are ranged attackers)
• A fire resistance potion — non-negotiable. Falling into lava without one ends your run. See the brewing guide for the recipe
• Food — the Nether drains hunger through combat more than anywhere else in the game
• Blocks for bridging across lava (cobblestone, dirt)
• Flint and steel to relight your portal if Ghasts shoot it

The gold armor rule

Adult Piglins are neutral toward players wearing at least one piece of gold armor. Without it, every Piglin in range will attack you simultaneously. That one piece of gold changes your experience from running through hostile territory to navigating it almost safely. Note that this does NOT apply to Piglin Brutes — those attack everyone regardless.

Nether biomes

Understanding which biome you’ve spawned in shapes your entire Nether strategy.

Nether Fortress — find it and clear it

The Nether Fortress is mandatory. You need Blaze Rods from it to craft Eyes of Ender (to find the End Portal) and to build a brewing stand. Skip this and you’re stuck.

How to locate a Nether Fortress

Nether Fortresses generate in strips running roughly north to south, repeating every few hundred blocks. The fastest strategy is to travel east or west (along the positive or negative X axis). Walk in a straight line and you’ll eventually cross a strip. A Fortress looks like dark nether brick — slightly different from the surrounding netherrack — so watch for blocky, straight-edged structures that don’t fit the landscape.

If you spawned in a Crimson Forest or Basalt Deltas, the fortress is harder to spot against the terrain. Look for elevated, flat-bottomed structures or linear bridge segments. Fortresses can generate partially buried or clipping into terrain in 1.21, so check underground too if you see partial structures.

Dealing with Blazes

Blazes are the reason you’re here. They spawn from Blaze Spawners on the bridge sections of the Fortress, in groups of up to 3. Each Blaze attacks with volleys of 3 fireballs and will pursue you aggressively. Their fireballs set blocks on fire, which cascades fast in the Fortress’s wooden structures (Nether Wart rooms have wooden elements).

Combat approach: close the gap quickly. Blazes are accurate at range but slow to react at melee distance. A shield blocks fireballs. Snowballs deal 3 damage (1.5 hearts) per hit and Blazes drop to the ground when hit, making them easy to finish with a sword. Bring 16+ snowballs if you have them. Each Blaze drops 0-1 Blaze Rods. You need at least 12 Blaze Rods total — 2 for a brewing stand, 2 per Eye of Ender stack crafted, and extras for Blaze Powder as potion fuel.

Don’t grief the Blaze Spawners unless you’re absolutely sure you won’t want a Blaze XP farm later. They’re the best XP farm source in the mid-game.

Wither Skeletons and Nether Wart

Wither Skeletons spawn in the corridor sections of the Fortress at light level 7 or below — keep lighting as you go if you don’t want them respawning. They’re tall (2.5 blocks), carry stone swords, and inflict the Wither effect on hit: your health bar turns black and drains over 10 seconds. Not immediately lethal but extremely dangerous in groups.

Smite V on a sword gives bonus damage to undead mobs, including Wither Skeletons — far more effective than Sharpness for fortress clearing. Use a sword, not an axe; the sweep attack (Java) or fast attack cadence matters in corridors.

Nether Wart grows in the stairwell rooms inside the Fortress — look for soul sand patches with red stalks. Grab every piece you see and take several stacks of soul sand too. Nether Wart is the base ingredient for Awkward Potion, which is the foundation of every useful potion in the game. Check the best potions guide once you have your brewing stand set up.

Bastion Remnants — high risk, high reward

Bastion Remnants are the Nether’s other major structure. They’re harder than Nether Fortresses by a significant margin, but the loot justifies it: the Netherite Upgrade Smithing Template, Pigstep music disc, gilded blackstone, and substantial amounts of gold.

The four Bastion types

The Treasure Room Bastion is the main target. It’s the only Bastion type with a guaranteed Netherite Upgrade Smithing Template in the treasure chests. You can identify it from outside by its distinctive large arch structure and the magma-lit interior visible through the walls.

Piglin bartering

Throw gold ingots at Piglins and they’ll toss an item back randomly. The loot table includes fire resistance potions, Soul Speed books, obsidian, crying obsidian, gravel, string, and iron boots. It’s not the most efficient use of gold, but it’s a way to get items that are otherwise hard to farm in the Nether — especially fire resistance potions if your Nether Wart supply is low.

Piglin Brutes — the ones that don’t negotiate

Piglin Brutes spawn inside Bastions and are permanently hostile. They attack regardless of gold armor, deal 19 damage on Hard difficulty (nearly 10 hearts in a single hit), and carry golden axes that bypass shields. They don’t count as a standard Piglin — they cannot be distracted, bartered with, or pacified.

Kill them at range with a bow before closing to melee if possible. They have no ranged attack, so use pillars or corners to break line of sight. A critical hit with a diamond sword will take most of their 50 HP, but you still need to play carefully. Axe users: Smite V is brutal here since Brutes are technically Piglins (undead subtype in-game). Wait — actually, Piglin Brutes are NOT undead. They’re regular mobs. Use Sharpness V.

Ancient Debris and Netherite

Netherite is the endgame material. Every piece of Netherite gear outperforms diamond: more durability, higher protection values, better knockback resistance, and crucially — it doesn’t burn in lava. Getting your first Netherite upgrade is a milestone.

Where ancient debris spawns

Ancient Debris generates exclusively in the Nether, buried in netherrack, basalt, or blackstone. It never generates exposed to air. The best Y level is 15 for Java and Bedrock — peak spawn rate sits there. It generates in small veins of 1-3 blocks, sometimes as isolated singles. Expect to spend serious time. A full Netherite armor set requires 24 ancient debris; each piece needs just 1, but you need 4 netherite scraps per ingot and 1 ingot per upgrade.

Start by just upgrading your chestplate (highest protection value) and pickaxe (for durability during the rest of the grind). Full Netherite can wait.

Two ways to mine it

Strip mining at Y 15: same principle as diamond mining, but in the Nether. The risk is lava pockets — ancient debris itself is immune to fire and lava (it floats), but you aren’t. Fire resistance potion is mandatory here. Efficiency V pickaxe on netherrack is extremely fast; use it.

Bed mining: placing and detonating beds in the Nether (beds explode outside the Overworld) exposes large areas instantly. Each bed explosion roughly triples your ancient debris per hour compared to strip mining, but you’ll die if you mistime it. Bed mining is the technique used by speedrunners; it works, but requires a specific execution to avoid self-damage. Research it separately if you want maximum efficiency.

Crafting Netherite ingots and upgrading gear

Smelt each ancient debris piece in a furnace (or blast furnace — twice as fast) to get Netherite Scrap. Combine 4 Netherite Scraps + 4 Gold Ingots in any arrangement on the crafting table to make 1 Netherite Ingot (it’s a shapeless recipe — placement doesn’t matter).

You also need the Netherite Upgrade Smithing Template, which only drops from Bastion Remnant treasure chests. Once you have the template, go to a Smithing Table: slot 1 = template, slot 2 = diamond gear piece, slot 3 = Netherite Ingot. The result is the upgraded Netherite piece with all existing enchantments intact, at no XP cost. This is why you enchant diamond first, then upgrade.

You can duplicate the Netherite Upgrade Template using 7 Diamonds + 1 Netherrack on a crafting table (surrounding the template with diamonds in a 3×3 grid, netherrack in centre), so you don’t need to farm multiple Bastions.

Trial Chambers — the 1.21 dungeon

The Tricky Trials update (1.21) added Trial Chambers: procedurally generated underground dungeons built from copper, tuff, and deepslate bricks. They’re the most complex naturally generating structure in the game and contain unique loot — including the pieces needed to craft the Mace, a powerful new weapon.

What are Trial Chambers and where to find them

Trial Chambers generate underground, with their entrance rooms around Y -40 to -20. The bulk of the structure extends up to Y 0. They can generate in any biome, appearing roughly once per 34×34 chunk region (about every 500 blocks). Finding them by exploration alone is possible but time-consuming.

The reliable method: trade with a journeyman-level Cartographer villager for a Trial Chamber Explorer Map (12 emeralds + 1 compass). The map marks the nearest Trial Chamber. Journeyman is the third trade tier — you’ll need to unlock it by trading lower-tier items first. Alternatively, on Java Edition you can use the /locate structure minecraft:trial_chambers command if you have cheats enabled.

The Breeze mob

The Breeze is the defining combat challenge of Trial Chambers. It spawns only from select Trial Spawners inside the structure and is unlike anything else in Minecraft — a tall, vaguely humanoid mob that fights entirely at range using Wind Charges.

Stats: 30 HP (15 hearts), attacks every 1.6 seconds. A Wind Charge hit deals 1 HP on Normal difficulty and 1.5 HP on Hard, but the real danger is the knockback — a Wind Charge can launch you 15 blocks horizontally and 5 blocks vertically, sending you into other hazards or off ledges. The Breeze also leaps constantly, making it a moving target.

How to fight it effectively: the Breeze has a blind spot at very close range (1-2 blocks). Close the gap hard and fast, then finish in melee. It also deflects ALL projectiles back at you, including arrows and crossbow bolts — do not try to bow-snipe it. If you hit an incoming Wind Charge with a melee attack, you deflect it back at the Breeze, dealing significant damage. Mastering this parry mechanic turns the fight in your favour quickly.

Drops: 1-2 Breeze Rods (100% drop rate), plus 10 XP.

Trial Spawners, Trial Keys, and Vaults

Trial Spawners are special spawners that scale to the number of players in the room. When you approach, they activate and spawn waves of mobs. After you defeat all mobs in a wave, the spawner ejects loot — including a 50% chance of dropping a Trial Key. These spawners have a cooldown per player: once cleared, they won’t trigger again for you until the timer resets.

Trial Keys open Vaults — the gold-trimmed loot blocks found throughout the chambers. Each player can open each Vault once. A Vault ejects 3-6 items drawn from three loot pools: common (combat supplies, emeralds), rare (enchanted books, weapons), and unique (wind charges, honeycombs, trims). The items are valuable but not the main prize — that comes from Ominous Trials.

Ominous Trials and the Heavy Core

Ominous Trials are the harder variant triggered by the Bad Omen effect. To get Bad Omen, kill a raid captain (the Pillager or Vindicator carrying an Ominous Banner), then drink an Ominous Bottle to convert it to the Trial Omen effect before entering a Trial Chamber. Alternatively, in 1.21, raid captains sometimes spawn during regular Pillager Patrols.

Once Trial Omen is active inside a Trial Chamber, all Trial Spawners become Ominous — they spawn harder mobs, add environmental hazards (projectile-throwing potions from dispensers), and have a 30% chance to drop an Ominous Trial Key on completion.

Ominous Trial Keys open Ominous Vaults, a rare gold-and-orange variant of the standard Vault. Ominous Vault loot includes exclusive items: the Flow Armor Trim, unique banner patterns, and most importantly the Heavy Core — the component needed to craft the Mace. Heavy Core has a 7.5% chance of appearing as a Vault reward, so plan on multiple runs.

Crafting the Mace

The Mace is the new weapon type added in 1.21. Crafting recipe: place the Heavy Core in the top-centre slot of a crafting table, then place a Breeze Rod directly below it. That’s it — two components, two slots.

The Mace’s defining mechanic is its smash attack: falling from height and striking a mob before you land multiplies damage based on how far you fell, can deal 100+ damage to a single target on a large fall, and — critically — negates all fall damage if the hit lands. It also applies knockback to nearby enemies when it connects. As a weapon for Trial Chamber combat specifically, where you’re often jumping between platforms, the Mace rewards aggressive vertical play. The Breeze Rods you’ve been collecting are the fuel for this weapon, so don’t throw them away.

The Mace can be enchanted with Mending, Unbreaking III, and weapon-type enchantments. It does not share enchantments with swords or axes.

Armadillos and Wolf Armor in 1.20.5+

Armadillos and Wolf Armor arrived in the Armored Paws update (1.20.5) and remain part of the game in 1.21 and beyond. They’re not a core progression requirement, but Wolf Armor is genuinely useful if you use a wolf companion regularly.

Finding Armadillos

Armadillos spawn in Savanna and Badlands biomes — the flat, orange-toned areas with acacia trees and red/orange terrain. In savannas, they spawn in groups of 2-3 on Java (up to 4 on Bedrock). In badlands, groups of 1-2. They’re not rare but not ubiquitous either — scan the ground carefully since they blend into the terrain.

Armadillos roll into a defensive ball when threatened — specifically when you sprint near them, if you’re mounted, or if an undead mob is nearby. In rolled-up form they can’t move and won’t drop scutes. Just walk (don’t sprint) near them to keep them calm and active. They have 12 HP and won’t attack you.

Collecting Armadillo Scutes

Two methods:

• Passive drops: an Armadillo naturally drops 1 scute every 5-10 minutes on its own. You can pen several Armadillos and collect scutes passively over time
• Brush tool: using a Brush on an Armadillo immediately yields 1 scute. Each brush use costs 16 durability on the brush

Breed Armadillos using Spider Eyes — drop a Spider Eye near two adults and they’ll enter breeding mode, producing a baby. Babies take 20 real-time minutes to mature. A larger breeding pen means faster scute accumulation. Spiders run from Armadillos within 6 blocks, which is a fun (and accidental) base defence perk.

Crafting and equipping Wolf Armor

Wolf Armor recipe uses 6 Armadillo Scutes in this shape on a crafting table (reading left to right, top to bottom):

[Scute] [empty] [empty]
[Scute] [Scute] [Scute]
[Scute] [empty] [Scute]

To equip: right-click your tamed adult wolf with the Wolf Armor in hand. The wolf must be tamed to you specifically and must be an adult. You cannot put armor on puppies or other players’ wolves.

Wolf Armor provides 11 armor points (equivalent to iron armor) and has 64 durability. Repair it directly in your hand (right-click wolf to retrieve it, repair, re-equip) by adding more scutes. Anvil repairs give more durability per scute — 16 per scute at an anvil versus 8 direct. The armor is dyeable: in Java Edition, combine the armor and dye in a crafting grid; in Bedrock, use a cauldron filled with dyed water. Use Shears to remove the armor from the wolf without destroying it.

Notably, Wolf Armor cannot be enchanted — no Mending, no Unbreaking. The repair cost means keeping a steady Armadillo pen is worth the early setup investment.

Your next steps

With diamonds mined, gear enchanted, and the Nether explored, you’re approaching the endgame. The next milestone is the End dimension: finding a Stronghold using Eyes of Ender, clearing the End Portal room, and taking on the Ender Dragon.

Eyes of Ender are crafted from Ender Pearls (Endermen drops) + Blaze Powder (from Blaze Rods). You need 12 to fill the End Portal frame, plus extras to locate the Stronghold. The portal is buried underground, and the Eyes of Ender float toward it when thrown, then fall and either break or can be retrieved. Full preparation is covered in the End Dimension guide and the Ender Dragon fight guide.

One final stop worth making before heading to the End: the Ancient City. It’s the deepest structure in the Overworld (Y -51 to -52) and contains the Swift Sneak enchantment (exclusive to chest loot there), Echo Shards for Lodestone Compasses, and Disc Fragment 5 for Music Disc 5. The Warden is brutal — but the loot, including some of the best enchantment books in the game, is worth planning around.

For a complete view of the whole progression arc from first night through dragon, check the Complete Minecraft Progression Guide.

Frequently asked questions

What is the best Y level for diamonds in Minecraft 1.21?

Y -59 has the highest diamond density in 1.21, but it sits right at the lava sea level which makes it dangerous. Y -53 to -58 is the practical sweet spot — strong diamond yield with slightly fewer lava interruptions. Always bring a fire resistance potion and a water bucket regardless of your chosen depth.

How many bookshelves do I need for a level 30 enchant?

Exactly 15 bookshelves placed within a 5×5×3 area around the enchanting table, with one block of air between the shelves and the table. Each shelf adds 2 enchanting levels. More than 15 has no effect. Carpets, torches, or other blocks placed on top of shelves block their contribution.

How do I find a Trial Chamber in Minecraft 1.21?

Trade with a Journeyman-level Cartographer villager for a Trial Chamber Explorer Map — this is the most reliable method. Trial Chambers generate roughly once every 500 blocks in most biomes, between Y -40 and approximately Y 0. You can also use /locate structure minecraft:trial_chambers with cheats enabled on Java Edition.

What does the Breeze drop in Minecraft?

The Breeze drops 1-2 Breeze Rods at a 100% drop rate, plus 10 XP. Breeze Rods have two uses: they can be crafted into 4 Wind Charges each, or used as the handle component when crafting the Mace (combined with a Heavy Core).

Can Wolf Armor be enchanted in Minecraft?

No. Wolf Armor cannot be enchanted under any circumstances — no Mending, no Unbreaking, nothing. It can only be dyed and repaired using Armadillo Scutes. Repair it on an anvil for 16 durability per scute, or directly (right-click the wolf to retrieve, repair in hand, re-equip) for 8 durability per scute.

What is the Netherite Upgrade Smithing Template used for?

It’s required to upgrade diamond gear to Netherite at a Smithing Table. Without it, the Smithing Table won’t accept diamond + Netherite Ingot as valid inputs. The template is found exclusively in Bastion Remnant treasure rooms. You can duplicate it using 7 Diamonds and 1 Netherrack in a crafting table (place the template in the centre, surround with diamonds, put Netherrack in a corner).

How do I get Mending in Minecraft without a villager?

The main non-villager methods are fishing (with a rod enchanted with Luck of the Sea III, Mending appears in roughly 1-2% of catches as a treasure enchantment) and chest loot in dungeons, mineshafts, temples, ancient cities, and Bastion Remnants. Fishing is the most grind-friendly early option. It’s tedious, but a Luck of the Sea III + Lure III rod significantly reduces the time investment.

Sources

1. Minecraft Wiki. Trial Chambers — generation, spawners, loot tables, and Ominous Trials mechanics. minecraft.wiki
2. Minecraft Wiki. Breeze — combat stats, Wind Charge projectile mechanics, and drop rates. minecraft.wiki
3. Minecraft Wiki. Wolf Armor — crafting recipe, armor points, durability, repair mechanics, and dyeing. minecraft.wiki
4. Minecraft Wiki. Armadillo — spawn biomes, scute drop mechanics, breeding, and rolling behaviour. minecraft.wiki
5. Minecraft Wiki. Ore — diamond and ancient debris distribution data for 1.21, Y-level generation ranges. minecraft.wiki
6. Minecraft Wiki. Nether Fortress — structure layout, Blaze spawner locations, and Wither Skeleton mechanics. minecraft.wiki
7. Minecraft Wiki. Bastion Remnant — structure variants, Piglin Brute stats, and Netherite Upgrade Template loot. minecraft.wiki