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Beast of ReincarnationGuide & wiki

4 August 2026 release
Updated 2026-08-05

Beast of Reincarnation Erymanth: The Arena Is the Fight

The last Nushi in the clear order, and the one whose name a player confirmed without ever seeing the evidence we derived it from. A narrow arena that forces parries, and a second phase two sources describe differently.

Applies to 4 August 2026 releaseUpdated

By

The internal achievement id for this fight is ACH_NUSHI_WILD_BOAR, which names wild boar. Placed by the sync script with no judgement involved: this id's unlock percentage is currently unique across both Steam endpoints. Erymanth is the Erymanthian Boar of the fourth labour of Heracles — the only boar in the naming scheme.

Clear order

7 of 7

Corroborated by two unrelated sources

Owners who have cleared it

5.7%

Valve’s live figure, re-read daily

How the name was established

confirmed

Independently corroborated

The Erymanth fight with the boss health bar on screen, carrying the name and level in the shipped game’s own text
A single frame from ExoGhost’s no-commentary run, cropped to keep the fight’s own health bar — that bar carries this boss’s name and level in the shipped game’s text, which is why the frame was chosen over a prettier one. Copyright GAME FREAK inc. and Fictions.
§01

How well we know this fight

Where the evidence stands

The same evidential shape as Ursa, and it is the reason this page can exist while Corvus still cannot. We derived the name from an internal achievement id, ACH_NUSHI_WILD_BOAR, on a rule that the id names the animal and the display name is that animal’s Latin form — our own reasoning, and the weakest grade here on its own. Then a creator recording the fight in another language, who has never seen the manifest and does not mention one, opens by saying he is not sure how to describe it except that it is a big wild boar. Two methods with nothing in common landing on the same animal is the corroboration. What is thin is the tactical half: the fullest source is thirty-six seconds long, and the other is auto-translated into near-unusability.

§02

The arena is the mechanic

Every other fight on this site is described in terms of the boss. This one is described in terms of the room, by the only creator who talks over it: the space is narrow enough that dodging is not reliably available, which turns parrying from a choice into a requirement. That also removes the standard answer to a charging boss — you cannot make distance and you cannot roll through everything — so the fight has to be taken at close range whether or not that suits your build.

  • The arena is very narrow and gives little room to move. That is the hardest part of the fight.fisa0vwRODM 00:00
  • Its charges are powerful and there is not always space to dodge them, so some have to be parried.fisa0vwRODM 00:00
  • It is extremely dangerous up close and you have to fight it up close regardless.fisa0vwRODM 00:00
  • Look for openings after its strongest attacks rather than trying to make your own.fisa0vwRODM 00:00–00:30
  • Koo is with you for this fight — spend his abilities immediately after a parry.fisa0vwRODM 00:30
§03

The boar, confirmed by someone who never saw the manifest

This is the part of the page worth reading even if you are not stuck. The internal id names a wild boar; the Latin-form rule turns that into Erymanth; and neither of those steps involves anybody who has played the fight. A creator who recorded it in another language then describes the boss, unprompted and in the first fifteen seconds, as a big wild boar — the one thing he says he is sure of. He is not corroborating our name, which he never mentions. He is corroborating the animal the name was derived from, which is the step that could have been wrong.

  • "It is a big wild boar, that much we are sure of" — a player, describing what is on his own screen.w6wBhE1RhFg 00:00
  • A second phase follows the first, with a transformation between them.w6wBhE1RhFg 01:00–01:30
  • In that phase it spins, and it spawns smaller enemies.w6wBhE1RhFg 01:30–02:00
  • He places the fight immediately before the final bosses — which is where the corroborated clear order puts it too.w6wBhE1RhFg 01:00
§04

A third route to the same name

The animal is corroborated twice above — the internal id and a player’s own description. The still on this page is the third, and it is the most direct of them: the frame was captured for the fight’s health bar, and that bar prints “Lv. 47 Erymanth” in the shipped game’s own text. So the spelling is not only Fextralife’s and not only ours. The level does a second job. Fextralife published this fight at Lv. 47 with no provenance behind the number, and this site declined to repeat it — an unsourced figure from a site with no per-claim provenance is not evidence of anything but its own publication. The game’s own bar reads the same number, which turns a claim we would not repeat into one we can confirm. That is the difference between adopting a competitor’s figure and checking it.

  • The health bar reads “Lv. 47 Erymanth” in the client’s own text.SCut20Mkt2c 02:53:55
  • Fextralife published Lv. 47 with no source. The bar confirms the number rather than the page.SCut20Mkt2c 02:53:55
§05

Two things this page will not tell you, and why

The second source is auto-translated and its judgements do not survive the translation intact — it calls the boss disappointing and its attacks recycled, and this site is not in a position to repeat an opinion it cannot read cleanly in the original. More importantly, Fextralife published an Erymanth page on 6 August 2026 stating a zone, a level, an elemental weakness and a drop. Exactly one of those four is repeated here, and only because the game’s own health bar reads the same number — see above. The other three are not. That page carries no per-claim provenance and no build stamp, so it is evidence that Fextralife published those claims and nothing more, and retyping a competitor’s confident specifics is named in this repo’s own competitor notes as the fastest way to publish something false about this game. The zone in particular is worth naming as unrepeated: it is the kind of detail that reads as authoritative and is checkable by nobody.

Erymanth — questions players actually ask

Fight it close, because the arena is too narrow to dodge reliably, and parry its charges rather than trying to roll them. Take your damage in the openings after its strongest attacks, and spend Koo’s abilities straight after a parry.

Sources for this page

  • Trophy Guides — Erymanth Boss GuideUploaded 2026-08-04, thirty-six seconds — the first filmed Erymanth evidence of any kind, on a fight this site previously had nothing for but a competitor's unsourced page. The arena is the mechanic: narrow enough that dodging is not always available, so some charges have to be parried, and the fight has to be taken at close range regardless. Also states Koo is with you for it. The captions never render the boss name, calling it "Ahriman" throughout and Koo "Kusu", so the name still rests on the creator-typed title.
  • The Evil Plague Trophy Hunters — Erymanth BossUploaded 2026-08-05, auto-translated from another language and near-useless as prose — the captions produce "remounts" and "the end of the rims" for the boss name. It is cited for one thing it does carry: the creator independently describes the boss as a big wild boar, which is what the internal id ACH_NUSHI_WILD_BOAR names. That is a player who has never seen the achievement manifest agreeing with the achievement manifest, and it is the strongest form of corroboration this roster gets. Also gives a second phase, a spin attack, adds, and places the fight immediately before the final bosses.
  • Fextralife wiki — Bosses and Nushi ListCompetitor claim, read 2026-08-05. Evidence that Fextralife derived its boss roster from the game's public trophy list, which the page states in its own prose, and evidence for the class noun "Nushi" appearing in a page title. Also one half of the wiki's self-contradiction: this page calls the zone "Inumaki River Zone".

Video ids and timestamps are printed beside each claim above rather than collected here, so any single line can be checked without reading the page twice.

Keep going

Every boss, the clear order and how settled each name isAll 46 achievements with live unlock ratesThe combat systems these tactics assumeWhere our sources contradict each other

← Back to the boss roster