Erymanth Boss Guide: The Explosive Weakness That Cuts Beast of Reincarnation’s Hardest Charge Fight Short

Verified against Game8’s move-by-move breakdown and cross-checked against 3 other guides published in the first weeks after Beast of Reincarnation’s August 4, 2026 launch [1][2][3]. Erymanth is the 5th of 10 Nushi bosses [7], and until now it sat in our own Rangifer and Lacerta boss guide‘s “What We Don’t Know Yet” list as unverified — this is the follow-up now that a real attack breakdown exists.

Quick Start: What Actually Beats Erymanth

Skip the trial-and-error. Do these five things before you walk into Chapter 12’s boss arena:

  1. Buy the Explosive Bolts manual from the Wandering Merchant at the campsite south of Mountain Plaza: Forefront, or grab the Explosive Arrows manual (Manual #6) in the Fuji Frontier Zone, just north of the path once you cross the pipes west of the entrance, near a peaceful Golem [5]. Craft a stack of whichever ammo matches your ranged weapon before you go in.
  2. Stop trying to parry the Charge. Its tusks flash red before it fires forward — that’s this game’s universal “do not parry” tell, and Erymanth’s version is faster than anything in the Rangifer/Lacerta fights [1][3].
  3. Watch for wind-up instead of waiting for a hit to react to. Tusk Slam and Floral Slam both telegraph with a raised-tusk pose before spikes or roots erupt from the ground — reposition during the wind-up, don’t wait for the impact [1].
  4. Treat the 5-Hit Tusk Combo as your FP farm. It’s the slowest, most parryable pattern in Erymanth’s kit and it glows red the whole time so you always know it’s coming [1].
  5. Expect reduced visibility from the halfway point onward. Every attack in phase 2 kicks up a dust cloud that partially obscures the arena — don’t panic-dodge when you can’t see clearly, wait for a sound or silhouette cue instead [1].

Erymanth at a Glance

NushiZoneRecommended LevelWeaknessKey MechanicKey Reward
Erymanth (5th)The Capital, Chapter 1247ExplosiveNon-parryable Charge; phase 2 adds vision-obscuring dustKiku: Bloom Strike II + Kiku Finisher

Verified against Game8’s Chapter 12 walkthrough and beastofreincarnationwiki.com’s boss roster, both dated within the game’s first weeks post-launch [1][2]. Values may shift with future balance patches.

Two-moment illustration showing the boss mid-charge with a red glow, then pausing in a recovery stance afterward
The charge itself is unsafe to challenge — the stance right after it ends is where the real damage window opens.

The Charge Attack: Why Aggression Loses This Fight

Erymanth’s Charge is the reason “just parry everything” — the habit our parry timing guide already warns against carrying over from other soulslikes — actively gets you killed here. The tusks flash red, then it closes distance faster than any single attack in the Rangifer or Lacerta fights [1][3]. That red flash is the same universal non-parryable tell the site’s earlier boss coverage established [3], but Erymanth is the first Nushi where ignoring it on reaction time alone isn’t good enough — the charge is too fast to dodge on a late read. You need to see the flash and commit to the dodge before the charge starts closing distance, not after.

Here’s the decision tree that actually matters in this fight: if the tusks flash red, dodge — never parry, regardless of how confident your timing feels. If Erymanth raises its tusks without a red flash (Tusk Slam, Floral Slam), that’s a reposition cue, not a dodge-roll cue — moving out of the impact radius during the wind-up is safer than timing a dodge at the last second, since spikes or roots erupt in a fixed area rather than tracking you [1]. Everything else — Double Spin, Two-Tusk Swipe, the 5-Hit Combo — is parryable and safe to practice your FP-farming rhythm on.

The payoff for reading this correctly: Erymanth’s strongest attacks all leave a brief opening once they finish, and that opening is longer after a Charge than after any of its parryable strikes, because the charge carries Erymanth several meters past its start point before it can turn back toward you [1][3]. That gap is your real damage window — not the fight’s opening minute, not a panicked dodge-roll combo, but the two or three seconds right after a charge whiffs.

Full Attack Breakdown

Game8 currently has the only published move-by-move breakdown for this fight — beastofreincarnationwiki.com’s own dedicated Erymanth page states outright that it doesn’t have one yet [2]. Everything below traces to that single verified source, cross-checked against two general-strategy guides that agree on the broad strokes (Explosive weakness, charge-then-punish) without listing individual moves [2][3]. Treat this table as the current best data, not a closed case.

AttackTellParryable?
Double SpinNoticeable delay before spinning twice with its tusksYes
Two-Tusk SwipeTwo tusk swipes, slightly faster than Double SpinYes
5-Hit Tusk ComboGlows red throughout; 3 swipes into a Double SpinYes
Tusk SlamRaises tusks, then slams down as ground spikes eruptNo — reposition during wind-up
Floral SlamSame wind-up as Tusk Slam, but roots/flowers erupt insteadNo — reposition during wind-up
Seed BulletsShakes, then fires seeds from the flower on its backNo — dodge sideways
ChargeTusks flash red, then charges forward at high speedNo — dodge only, cannot be parried under any circumstance

Gear check before you go in: level 47 minimum, an Explosive-element ranged weapon loaded, and the reflexes to tell a red-glow 5-Hit Combo (safe to parry) apart from a red-flash Charge (never safe to parry) — they share the same red cue but demand opposite responses.

Explosive Loadout: Where to Actually Get It

Every guide checked agrees you should “equip Explosive-based attacks” against Erymanth [1][2][3], and none of them say where to get Explosive ammo before the fight [1][3]. Two manuals unlock it. Explosive Bolts (Manual #12) sells at the Wandering Merchant vendor stationed at the campsite south of Mountain Plaza: Forefront — the same vendor restocks it in later regions if you missed the first one [5]. Explosive Arrows (Manual #6) is a field pickup in the Fuji Frontier Zone: from the area’s entrance, follow the path west across the pipes, then look slightly north near a peaceful Golem [5]. Either manual is also obtainable from a Wandering Merchant’s later stock or from a character named Brad, so a missed first pass isn’t fatal [5].

General Explosive damage “weakens certain enemies, letting Emma deal more damage to them” [4] — a boss’s weakness element shows as an icon on its health bar once you’ve identified it, per the same general combat framework the site’s own Rangifer/Lacerta guide already covers for Fire and Lightning [4][6]. Neither Game8 nor the fan wiki states an exact damage multiplier for Explosive against Erymanth specifically, so treat it as meaningfully faster clears rather than a precise percentage until more testing data exists — the same calibration this site applied to Rangifer’s Fire weakness and Lacerta’s Lightning weakness [1][2].

Still-life arrangement of a bow, crossbow, and glowing ember-cored explosive arrows and bolts
Craft this ammo before you walk into the Chapter 12 arena, not after Erymanth’s first Charge catches you empty-handed.

Phase 2: The Dust Cloud Problem

Once Erymanth crosses roughly the midpoint of its health bar, every attack it lands kicks up a dust cloud that partially obscures your view of the arena [1]. This isn’t a new attack — it’s a visibility tax layered on top of the same seven-move kit. The practical effect: you can no longer rely purely on sight to catch a red flash the instant it starts, so lean harder on sound and Erymanth’s silhouette movement once the dust settles into the arena. Players used to the Rangifer/Lacerta fights’ clean sightlines should expect this phase to feel noticeably harder even though the moveset itself hasn’t changed [1].

Fitting Erymanth Into Your Existing Build

The stat priority our Rangifer and Lacerta guide already recommends — Strength and Florescence first, Vitality filled in later — doesn’t change for Erymanth [1]. What changes every fight is the element you swap in: Fire for Rangifer, Lightning for Lacerta, and now Explosive for Erymanth [1][4]. That framework holds because the element swap is a menu-screen decision, not a build respec — you’re not committing to an Explosive-only playstyle, just loading the right ammo type before this one fight and switching back after. If your ranged weapon is still on a neutral or mismatched element going into Chapter 12, that’s the single highest-value fix available before you engage, ahead of any extra leveling [1][4].

Who Should Prioritize What

Player TypePriority
New playerFarm FP on the 5-Hit Tusk Combo and Double Spin before engaging Charge at all. Both are slow enough to learn the parry rhythm safely.
Casual playerCraft one stack of Explosive ammo, go in at level 47, and treat every post-Charge window as your only real damage phase — don’t force damage anywhere else.
Hardcore / optimizerBait the Charge deliberately by staying at mid-range, since its post-whiff opening is the single longest punish window in the fight — a controlled Charge is worth more DPS than three parries.
CompletionistFull attack-list mastery matters more here than in earlier fights, since Tusk Slam and Floral Slam share a wind-up but demand identical repositioning either way — you can react to the pose alone without distinguishing them.

When NOT to Attempt Erymanth

Skip this fight for now if you’re meaningfully under level 47 with no Explosive ammo crafted, or if you still can’t reliably tell a red-flash wind-up from a red-glow attack under pressure — that single distinction is what separates a clean Erymanth clear from a repeat of the Lacerta wall [1][3]. Neither manual location requires backtracking through a boss zone, so there’s no good reason to walk in without Explosive ammo already stocked [5].

What We Actually Know vs. What’s Still Unverified

Erymanth’s core stats — Chapter 12, level 47, Explosive weakness, the Kiku reward — are corroborated by both Game8 and beastofreincarnationwiki.com independently [1][2]. The full seven-move attack breakdown, however, currently comes from Game8 alone; beastofreincarnationwiki.com’s own dedicated Erymanth page states plainly that it has no verified move-by-move data yet, and beastofreincarnation.online’s boss list still marks Erymanth’s strategy as “coming soon” as of this writing [2][7]. That’s not a reason to distrust the attack table above — Game8’s breakdown matches the general charge-then-punish strategy every other source independently describes — but if a specific tell ever looks different in your own run, that gap in community verification is why, not a patch change.

FAQ

Can I ever parry the Charge if my timing is good enough?

No — this is one of the few attacks in the game explicitly flagged as unparryable regardless of skill, not just risky [1][3]. Treating it as a hard dodge-only attack from the start saves you the HP you’d otherwise burn learning that the hard way.

Is it worth farming the 5-Hit Tusk Combo for FP before trying to end the fight?

Only if you’re already struggling to keep FP up during longer exchanges. It’s the safest attack in Erymanth’s kit to practice on, but it’s also the slowest — spending too long baiting it just extends a fight whose real damage comes from punishing Charge whiffs, not from FP volume [1].

Do Tusk Slam and Floral Slam need different reactions?

Not really. Both share the same raised-tusk wind-up and both call for repositioning rather than a reactive dodge, even though one erupts spikes and the other roots [1]. You don’t need to tell them apart in the moment — react to the pose, not the follow-up effect.

Sources

  1. Erymanth Boss Fight Guide — Game8
  2. Erymanth — Beast of Reincarnation Wiki
  3. Beast of Reincarnation All Boss Locations and Tips — oslink.io
  4. Enemy Weaknesses and Status Effects Guide — Game8
  5. Beast of Reincarnation All Arrow & Bolt Manual Locations — PowerPyx
  6. Beast of Reincarnation — The Complete Combat Guide — GamesHorizon
  7. Beast of Reincarnation Bosses — All Nushi Boss List & Strategies

New to this fight’s core combat loop? Start with our parry timing guide for the deflect fundamentals, then our Rangifer and Lacerta boss guide for how the FP and entanglement systems actually work before you reach Erymanth. Our complete Beast of Reincarnation guide covers the full game beyond this one fight.

Michael R.
Michael R.

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.