Aeonglass — Boss in Slay the Spire 2

Updated 17 Oct 2026 Source Slay the Spire 2 enemy data (spire-codex.com API), 115 enemies retrieved 17 October 2026 By Antewise Editorial

Data status: The facts on this page were checked against the source named above. Game values can still shift with a patch, so re-check anything that looks off.

Aeonglass is a Boss enemy with 512 (Ascension 535) HP in Slay the Spire 2.

Type	Boss
HP	512 (Ascension 535)
Innate powers	ARTIFACT 3

Move set

Move	Intent	Damage	Block	Heal
Ebb	Attack + Defend	26 / Asc 32	33	—
Eye Lasers	Attack	22 (11×2=22) / Asc 24 (12×2=24)	—	—
Increasing Intensity	Status + Buff	—	—	—

Attack pattern

This enemy uses a cycle pattern , starting with EBB. The documented sequence is: EBB → EYE_LASERS → INCREASING_INTENSITY.

Where it appears

Act 3 - Glory — Boss

Other Boss enemies

Ceremonial Beast — Boss
Crusher — Boss
Kin Follower — Boss
Kin Priest — Boss
Knowledge Demon — Boss
Lagavulin Matriarch — Boss
Queen — Boss
Rocket — Boss
Soul Fysh — Boss
Test Subject #C14 — Boss

Where to go next

All 115 enemies — the full list. Card database lists the tools you bring to the fight.

Relics cover the passive bonuses that help you survive. Boss guide hub explains the named fights.

Frequently asked questions

What is Aeonglass in Slay the Spire 2?

Aeonglass is a Boss enemy with 512 (Ascension 535) HP. Its moves and attack pattern are listed below.

Where does Aeonglass appear?

It appears in: Act 3 - Glory.

More Slay the Spire 2 guides

Sources

Figures and item data on this site are read from the game’s own reference wiki before publishing. Where a value could not be confirmed there, the page says so instead of filling the gap.