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Aeonglass: manage Wither and survive Ebb

Quick answer

Plan for status pressure before entering the fight. Remove or discard Wither when possible, get lasting damage online early, and account for the Block Aeonglass gains on Ebb.

By · Updated

How this guide was checked

Coverage: Early Access · Main 0.107.1 · optional Beta 0.111.0 · next beta planned November 12 · official sources checked November 4, 2026 UTC. Research checked 27 Sep 2026. Updated 25 Oct 2026

This guide uses the linked sources and any attributed demonstrations. Platform differences and limitations are noted with the advice they affect.

See the 4 sources
4 sources
Creator clipChecked on screen · 25 Oct 20264 steps1 moment · 0:41
  1. 0:40–1:21A first turn against Aeonglass: intent, damage, Poison and BlockCheck the turn before committing · Leon Kennedy

See it first · Check the turn before committing ↓

Checked on screen · Oct 25, 2026

0:40–1:21 · 41 sA first turn against Aeonglass: intent, damage, Poison and Block
Leon KennedyFull video ↗
Credits

“Slay the Spire 2 Aeonglass Boss Fight Full Battle” by Leon Kennedy · Jul 18, 2026 · Uploaded July 18, 2026, after Main 0.107.1 replaced Doormaker with Aeonglass

Independent creator · no partnership implied

Creator? Ask us to remove this

Before you start

  • Main 0.107.1. Beta values and mods may differ.
  • Read the intent and Wither tooltip in your fight; this page does not assume a universal Ascension or co-op damage number.
1

Use the current Ebb mechanic

Aeonglass replaced Doormaker on Main. The 0.107.0 changes merged into that release removed Ebb’s debuff and moved the boss’s Block gain onto its single-hit Ebb move. Advice about preparing for the old Ebb stat penalty is obsolete.

Sources for this section
2

Choose the answer your deck can support

CharacterUseful planWatch for
IroncladExhaust unwanted statuses and build Strength.Keep enough defense while spending cards on cleanup.
SilentUse active discard; Poison can keep damage moving.Long Shiv chains need a way to handle additional statuses.
DefectUse Orb output to reduce dependence on repeated card plays.An Orb plan still needs enough defense to get established.
RegentBuild toward high-value Star turns.Check Ebb’s Block before spending the payoff.
NecrobinderLet Osty and Doom contribute while managing the hand.Check when damage resolves before relying on it to prevent an attack.
Sources for this section
3

Check the turn before committing

Checked on screen · Oct 25, 2026

0:40–1:21 · 41 sA first turn against Aeonglass: intent, damage, Poison and Block

On each Aeonglass turn, read the boss's intent (22 damage plus a shield here) before playing anything, spend your attacks and Poison, then keep enough Block for the hit before you end the turn.

Leon KennedyFull video ↗
Credits

“Slay the Spire 2 Aeonglass Boss Fight Full Battle” by Leon Kennedy · Jul 18, 2026 · Uploaded July 18, 2026, after Main 0.107.1 replaced Doormaker with Aeonglass

Independent creator · no partnership implied

Creator? Ask us to remove this

0:40–1:21A first turn against Aeonglass: intent, damage, Poison and Block
  1. Read incoming damage and your available defense.
  2. Inspect the status pressure and decide which cards must be cleared.
  3. Compare the useful damage from a short sequence with the cost of extra plays.
  4. Recheck the boss’s Block, remaining Energy and displayed intent before ending.
Sources for this section
4

Work backward from the loss

Kingy review worksheet: record the turn where the plan stopped working. Was defense absent, unaffordable, or buried? Did damage fail to scale, or did statuses consume the hand? Choose the next draft or shop purchase to address that specific failure. A strong card in isolation may not solve it.

Keep the branch, Ascension, character and party size with that note. Without those details, comparing damage numbers from another run can mislead.

Sources for this section

Related guides

Shops and rest sites: spend for the next fight

Draft better cards and choose safer routes

Vantom and Kaiser Crab: prepare for their mechanics

You’re ready when…

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Sources · 4Official · Walkthrough · checked 8 Oct 2026 · Research checked 27 Sep 2026
Major Update #2 - v0.107.1 ↗Main branch: Workshop, RNG, Bestiary, Aeonglass, Pumpkin Candle duration and Kindle. Full patch text rechecked in the official Steam feed; no later Main patch was listed on October 8, 2026.Official ·
Combat basics ↗Main 0.107.1 combat decision rules.Walkthrough ·
Aeonglass on Main 0.107.1 ↗Wither management and character approaches. Exact damage tables excluded.Walkthrough ·
Beta 0.107.0 changes merged into Main 0.107.1 ↗Ebb no longer debuffs; Block moved to Ebb. Full text also monitored through official announcements.Official ·

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