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Brimstone Witch

The Brimstone Witch line is the longest storyline in the Calamity Overhaul adventure. A short while after you defeat the Calamitas Clone, she steps in with her own portrait and tells you she has only come to “measure” you. This first meeting offers two answers, fight or silence. Only drawing a weapon opens the rest of the story.

Choosing to fight carries the arc forward into the Moon Lord chapter, then into three commissions where she hands you a weapon and asks you to hunt a specific boss with it. Partway through, Halibut steps in to talk you out of working for the witch. Once all three commissions are turned in, the Brimstone Witch fight swaps to a full set of story lines and leads into the bad ending, Eternal Blazing Now, shortened to EBN on this page.

Brimstone Witch portrait

Dialogue and commission panels use the brimstone-fire presentation style.

Your choiceOutcome
Draw weaponSummons the Brimstone Witch; win or lose before Moon Lord each has an ending, and it can be retried
Stay silentShe leaves 999 Ashes of Calamity and departs; the hunt chain does not begin

Main route (requires drawing a weapon at the first meeting)

Section titled “Main route (requires drawing a weapon at the first meeting)”
StepEvent
1Defeat Moon Lord → post-fight scene → receive the Pallbearer; Commission ① registers
2Commission ①: kill Providence with 80% Pallbearer contribution → Heartcarver + Commission ②
3During Commission ②: Halibut steps in
4Commission ②: kill the Devourer of Gods with 80% Heartcarver contribution → Oni Machete + Commission ③
5Commission ③: kill Yharon with 75% Oni Machete contribution → Auric Bars + Proverb
6Defeat all four Exo Mechs → rewritten fight lines → EBN ending

Notes:

  • If the world already records the Brimstone Witch as defeated, the first meeting no longer triggers.
  • While holding the legendary Halibut, claim the matching boss gift first so nothing clashes with the first meeting or the Moon Lord scene.
  • The Moon Lord reward and all three commissions require choosing draw weapon at the first meeting.
  • In the commission tracker, these three jobs are filed under the Brimstone Witch category.
StageRewardNotes
First meeting · silentAshes of Calamity ×999No boss summoned
First meeting · win (pre–Moon Lord)Ashes of Calamity ×999The witch flees
After Moon LordPallbearerCommission ① weapon
Commission ① doneAshes of Annihilation ×199, HeartcarverCommission ② weapon
Commission ② doneOni MacheteCommission ③ weapon
Commission ③ doneAuric Bar ×302, ProverbGates the final fight
EBN reachedThe Forgotten Tome recipeResets all adventure progress

After all three commission weapons are turned in, each weapon’s item description gains a short weapon story told by the witch herself, explaining where it came from. The four stories in full are on Final fight & EBN.

The following flags are written to the character’s adventure save. In multiplayer, EBN-related state syncs to your companions.

ProgressMeaning
First meeting seenThe post–Calamitas Clone scene has played
Chose to fightWeapon drawn; the commission chain is available
Moon Lord reward claimedThe Pallbearer has been handed over; Commission ① can register
First-fight endingThe win or loss scene after the first fight has played (includes the legendary Halibut easter egg)
Commission ① accepted / declined / doneProvidence hunt state
Commission ① reward dialogueHeartcarver reward scene finished
Commission ② accepted / declined / doneDevourer of Gods hunt state
Commission ② reward dialogueOni Machete reward scene finished
Halibut’s interferenceTriggered; continue or stop Commission ②
Commission ③ accepted / declined / doneYharon hunt state
Commission ③ reward dialogueProverb reward scene finished; final fight lines unlock
EBN branch choiceThe two choices while Halibut is present
EBN reachedThe EBN character buff is active

For a full reset, see The Forgotten Tome.

SituationNotes
First fight lostRepeatable; valid before Moon Lord
First fight won before Moon LordThe witch reels, curses, and flees; you get Ashes of Calamity ×999
Legendary Halibut easter eggBeat the Brimstone Witch while holding the legendary Halibut with the sea domain at layer 10 or above; Halibut and the witch trade extra barbs (no effect on the commissions)
Altar gateWith Commission ③ done but the Exo Mechs not yet all defeated, the altar summons nothing
Rewritten fight linesAfter the commission chain, the Brimstone Witch fight uses story dialogue
After EBNFor a player who reached EBN, summoning the Brimstone Witch teleports them to the boss position and the witch NPC no longer appears; her post-fight portrait removes the hood

Halibut’s interference is detailed on Halibut · Halibut’s interference.