Most players who pick up Slay the Spire 2 already know the basics: build a deck, fight monsters, reach the boss. What the game never explains are the decision-making habits that separate players who consistently win from those who keep dying on Act 3. These 20 Slay the Spire 2 tips cover the hidden rules, common traps, and advanced mechanics you will not find in any tutorial — from your first run to your first Ascension victory.
Before diving in, if you are still learning the fundamentals, read our full Slay the Spire 2 beginner guide first. Once you have the basics down, come back here for the strategic layer that actually wins games.
Beginner Tips (Tips 1–6)
1. Skip Most Card Rewards
This is the single highest-impact habit change a new player can make. You will be offered three cards after almost every fight, and the temptation is to always take one. Resist it. A smaller, focused deck is almost always stronger than a large, bloated one because you cycle through your key cards faster and draw your win condition more reliably. A good rule: only take a card if it directly supports your current strategy or fills an obvious gap. If none of the three cards fit, skip — and feel good about it.
2. Upgrade Strike and Defend Last
Your starting cards are the weakest in the game, and spending upgrade resources (Smithing at rest sites) on them early is almost always a mistake. Strikes gain 3 damage — useful, but marginal. Defends gain 3 block — similarly underwhelming. Every upgrade slot is better spent on a power card, a key attack, or a synergy piece. Once your deck has a clear identity and your top cards are upgraded, then clean up the Strikes and Defends you could not remove.
3. Always Plan Two Nodes Ahead on the Map
The map is not just a path — it is your entire resource management system. Before taking any node, look two steps forward. Are you about to enter an elite fight without enough health? Is there a campfire (rest site) after the elite that will let you recover? Can you reach the shop in two turns? Players who react to each node individually get punished; players who plan ahead consistently arrive at boss fights in better shape.
4. Gold Is Scarce — Prioritise Relics Over Card Removal Early
The shop sells card removal (Purge), relics, cards, and potions. Early in Act 1, when your gold reserves are thin, the hierarchy is usually: relic > card removal > card > potion. Relics provide passive power that compounds for the rest of the run. Card removal becomes extremely valuable in Act 2 (more on this below), but in Act 1 your deck is still taking shape and you may not know which cards to cut yet. Save gold early; spend it precisely later.
5. Check the Act Boss Before You Commit to a Route
At the start of each Act, look at which boss you will face. This information is available immediately on the map screen. The boss determines how you should build. Facing The Guardian means you need enough damage to burst through its Vulnerable window. Facing Hexaghost means you need to calculate and survive its scaling fire attacks. Choosing to go all-in on a block-heavy build makes no sense if your boss ignores block. Adjust your card acceptance decisions the moment you see the boss name.
6. Potions Are Emergency Tools — Use Them
New players hoard potions and often end a run with three unused. Potions are single-use and expire when the run ends — they have no value in your inventory if you die holding them. Use a damage potion when an elite is about to kill you. Use a block potion when a boss has an unavoidable hit pattern. Save them for critical moments, but actually use them when those moments arrive.
Intermediate Tips (Tips 7–12)
7. Identify Your Win Condition by Floor 15
By the time you hit the midpoint of Act 2 (roughly floor 15 across both acts combined), your deck’s identity should be fixed. Win conditions in Slay the Spire 2 fall into a few archetypes: exhaust synergies, power stacking, high-energy burst turns, infinite combo loops, or strength-scaling. If you have not identified which archetype you are building by floor 15, you are probably building a generalist deck that will be mediocre against a boss that punishes mediocrity. Make decisions with this in mind — take cards that reinforce your identity, not cards that are generically “good”.
8. Shop Card Removal Is Almost Always Worth It
The Purge option at the merchant (which removes one card from your deck permanently for 75 gold, scaling up after the first use) is one of the highest-return purchases in the game. Every card you remove increases the percentage of your deck that consists of your good cards. Remove your worst starting cards first — usually a Strike or Defend that does not fit your build. By Act 2 and 3, card removal becomes even more valuable because your deck should be nearly finished and every remaining weak card is pure deadweight. Spend the gold.
For a full breakdown of the best cards worth keeping and removing, see our Slay the Spire 2 best cards tier list.
9. Know Which Elites to Skip and When to Fight Them
Elite enemies drop relics, which is the primary reason to fight them. However, elites in Act 1 when your deck has fewer than 12 cards and limited defensive options are extremely punishing — especially the wrong type of elite. The general rule: fight elites when you have a clear health buffer (at least 60–70% HP or a rest site immediately after), when you need a relic badly, or when the elite type is known to be weaker against your archetype. Skip elites when you are low on HP, your deck has obvious holes, or there is no recovery node nearby. Never fight an elite out of habit.
10. Status Cards Are a Trap
Several in-game events and bosses will add status cards (Wound, Dazed, Slimed, Burn, etc.) to your deck. These cards are almost universally negative — they clog your draw and dilute your hand. Unless you have a specific exhaust synergy that converts them into value (certain Ironclad builds, for example), treat status card gain as a direct health cost equivalent. Avoid events that force status cards unless the reward dramatically outweighs the deck pollution.
11. The Energy Relic Hierarchy Is Simple
Relics that increase your maximum energy (Bag of Preparation, Ectoplasm, Cursed Key, Runic Dome, etc.) are among the most powerful in the game, but each comes with a downside. Understand what you are trading before you accept them. Runic Dome (blind to enemy intent) is strong for players who have memorised or can predict enemy attack patterns. Ectoplasm (prevents future gold gain) is devastating if accepted early but can be safe late when you have already bought your key items. Read every relic tooltip before you collect it.
12. Act Transitions Reset Nothing — Plan Your HP Budget
Entering a new Act does not restore your HP. Many players treat an Act as a fresh start and overextend in the final elite or boss fight of Act 1. Your HP going into Act 2 is your HP for all of Act 2. Budget accordingly: aim to finish Act 1 with at least 50% HP, and prioritise rest sites over elites when HP is below 40%.
Advanced Tips (Tips 13–17)
13. Rare Relics Have Hidden Tiers — Learn Them
Not all rare relics are equal. Philosopher’s Stone, Runic Pyramid, and Pandora’s Box are run-defining; Dead Branch, Strange Spoon, and Mango are strong but conditional. The highest-tier rare relics are worth routing to question mark events for, worth buying in shops even at 300 gold, and worth taking from Elite relic pools over almost any other reward. Learning which relics fit which deck archetypes is what separates 90% win-rate players from 50% win-rate players.
14. When to Accept Curse Relics
Some relics add a curse to your deck as their cost (Calling Bell, Darkstone Periapt, Wrist Blade). Whether to accept them depends on three factors: how close to completion your deck is, whether you have curse synergies (Jinx, Ceremonial Dagger), and whether you have remaining removal budget to purge the curse later. Early-run curse relics can be worth it for the power spike. Late-run curse relics usually are not — your deck has no room for additional draw dilution.
15. Act 3 Elite Value Calculation
In Act 3, the elites are significantly harder, but the relics they drop are not significantly better than Act 1 or Act 2 relics. The risk-reward balance shifts. Unless your deck is complete and you have full HP, Act 3 elites are often best avoided in favour of campfires (to upgrade final key cards) or treasure rooms (for a free relic). Elite HP costs in Act 3 can easily reach 30–60 damage, which is HP you need for the final boss. Calculate before you commit.
16. The Seed System and Why It Matters for Practice
Slay the Spire 2 uses a seeded random number generator. The same seed produces identical runs. You can use the seed system to replay a run where you made a mistake and test alternative decisions, making it one of the most effective learning tools in the game. After a failed run, note the seed (shown on the death screen), re-enter it in custom run mode, and replay the branching decision that killed you. This deliberate practice loop accelerates improvement faster than raw repetition alone.
17. Event Outcomes Are Conditionally Affected by Prior Choices
Several events in the game have conditional outcomes based on your current state. The Golden Idol event, for example, offers a scaling gold reward based on how much HP you lose. Knowing which events have conditional branches — and positioning yourself to hit the best outcome — is an advanced layer that experienced players exploit consistently. Building a mental library of event outcomes is a long-term investment that pays off across hundreds of runs.
Hidden Mechanics (Tips 18–19)
18. Potion Slots Cap at Three — Do Not Leave Value on the Table
You can hold a maximum of three potions at once (without relics that expand the cap). If you collect a fourth potion while at maximum, you must drop one — meaning you may lose a potion you wanted to keep. Always be aware of your potion count before entering a node that rewards potions (treasure chests, potions events, certain elites). If you are at cap, use the potion you would drop first, then collect the new one.
19. Common Mistakes Even Veterans Make
Veterans of Slay the Spire 1 carry habits that actively hurt them in Slay the Spire 2. The most common:
- Assuming card values are identical between games. Some cards that were B-tier in StS1 are now S-tier due to new synergies, and vice versa. Re-evaluate every card on its current-game merits.
- Over-prioritising card draw at the cost of hand size management. Drawing into a full hand wastes card draw; plan your play order to avoid wasted draws.
- Not reading new relic and event text carefully. Several new mechanics in StS2 have subtle but crucial edge cases — always read tooltips on unfamiliar content.
- Ignoring the Act 2 merchant. The Act 2 shop often has the most powerful card options of the whole run. Budget gold in Act 1 specifically so you can spend in Act 2.
Speedrun and Achievement Tips (Tip 20)
20. For Achievement Hunters — Learn the Forced Route Manipulation
Several achievements require specific run conditions: winning without taking damage, defeating a boss under a HP threshold, or finishing a run using only starter cards. The fastest path to these achievements is forced route manipulation — intentionally selecting the path through the map that minimises elite fights, maximises event rooms, and keeps HP high enough to survive boss mechanics. Custom seeds (available in settings) let you replay ideal runs for achievement grinding without pure luck dependency.
Slay the Spire 2 Tips: FAQ
What is the single best tip for beginners in Slay the Spire 2?
Skip card rewards aggressively. A lean 12–15 card deck with strong synergies consistently outperforms a 25-card deck of individually good cards. Deck size management is the skill gap that matters most in the first 50 hours.
Is Slay the Spire 2 harder than the original?
On default settings, Slay the Spire 2 is comparable in difficulty to StS1 Ascension 0–5. New mechanics and enemies introduce fresh challenges, but experienced StS1 players will have a significant advantage in understanding core deck-building principles.
Which character should I start with in Slay the Spire 2?
Start with whichever character appeals to your preferred playstyle. Each character has a distinct mechanical identity. For a detailed breakdown, see our Slay the Spire 2 characters guide to understand which suits you best before committing to your first run.
When should I take elites in Slay the Spire 2?
Fight elites when: your HP is above 60%, there is a rest site within one or two nodes after the elite, you have a relic gap your build needs filled, or you have a specific combat tactic ready for that elite type. Skip them when any of these conditions are not met.
Does card removal get more expensive in Slay the Spire 2?
Yes — the Purge cost at the merchant increases with each use. The first removal costs 75 gold; subsequent removals cost more. This makes early removals the best value, so prioritise removing your worst starting cards as soon as possible rather than waiting for Act 3 when the cost is prohibitive.
Sources
- MegaCrit. Slay the Spire 2 — Official Store Page. Steam / Valve.
- Slay the Spire Wiki Contributors. Slay the Spire Wiki — Mechanics, Cards, Relics. Fandom.
- PC Gamer Editorial. Strategy Game Coverage and Reviews. Future plc.
I've been playing video games for over 20 years, spanning everything from early PC titles to modern open-world games. I started Switchblade Gaming to publish the kind of accurate, well-researched guides I always wanted to find — built on primary sources, tested in-game, and kept up to date after patches. I currently focus on Minecraft and Pokémon GO.