Ascender's Bane

Ethereal.
Unplayable.
Eternal.

Eternal

Card property

Cannot be removed or transformed from your Deck.

Eternal marks a card that cannot leave your Deck.

Removal effects skip it: the Merchant's card removal, Cook and Forbidden Grimoire's end-of-combat removal only count cards without Eternal.
Transform is blocked too, but only while the card sits in your Deck between fights. The code checks the pile, so an in-combat transform such as Seance on the Draw Pile or Entropy on your Hand can still change it for that combat.
Inside combat Eternal does nothing: the card can be drawn, discarded, Exhausted or played as normal.
The keyword is printed after the card text, next to Exhaust.

Cards with Eternal

Ascender's Bane

Ethereal.
Unplayable.
Eternal.

Unplayable.
At the end of your turn, if this is in your Hand, lose 13 HP.
Eternal.

Curse of the Bell

Unplayable.
Eternal.

If this is in your Hand, it must be played before other cards.
Eternal.

Ethereal.
Innate.
Unplayable.
Eternal.

Forbidden Grimoire

At the end of combat, you may remove a card from your Deck.
Eternal.

Unplayable.
Eternal.

Notes

Mostly curses: Ascender's Bane (added on floor 1 at Ascension 5), Bad Luck, Curse of the Bell from Calling Bell, Enthralled from Blood-Soaked Rose, Folly and Greed from Cursed Pearl.
One power: Forbidden Grimoire is the one Eternal Power, letting you remove a card after every combat but never itself.
Ember: the Tezcatara's Ember enchantment adds Eternal to a card along with cost 0 and 3 extra damage, making a strong card permanent.

Changes by version

18 Jun 2026BuffTezcatara Nutritious Soupv0.107.1
Buffed Tezcatara's Nutritious Soup relic: in addition to making your Strikes cost 0 and giving them Eternal, now makes all your Strikes deal 3 additional damage
26 Apr 2026BuffTezcatara Nutritious SoupBeta branch
Buffed Tezcatara's Nutritious Soup relic: in addition to making your Strikes cost 0 and giving them Eternal, now makes all your Strikes deal 3 additional damage
19 Mar 2026Bug fixGreed Sunken TreasuryBeta branch
Fixed missing Eternal hovertip when showing card preview for Greed curse in Sunken Treasury event

All 14 patch notes11 older

5 Feb 2026Bug fixVakuuInternal playtest
Vakuu's Beauty blessing now includes Eternal hovertip
2 Oct 2025Bug fixMad Science FocusInternal playtest
Mad Science card with Focus option can now randomly select Eternal cards to transform
14 Aug 2025Bug fixInternal playtest
Amalgamating Anvil event now excludes Eternal Strikes and Defends from selectable card options
17 Jul 2025Bug fixDarv Calling BellInternal playtest
Darv's Calling Bell relic now includes hovertip for the Eternal keyword
5 Jun 2025RemovedInternal playtest
Deprecated Eternal Solstice card
17 Apr 2025CostInternal playtest
Waterlogged curse card now costs 1 energy and is Eternal
13 Feb 2025ChangeInternal playtest
Eternal Solstice
InterfaceTezcataraInternal playtest
Tezcatara's Ember blessing now displays Eternal hovertip
TextInternal playtest
Eternal keyword now clarifies that it also prevents transforming
1 Nov 2024Bug fixInternal playtest
Fixed punctuation for Eternal Solstice power description
26 Sep 2024TextTezcataraInternal playtest
Tweaked Tezcatara's Ember description now that Eternal is its own keyword
6 Sep 2024InterfaceInternal playtest
Added the keyword Eternal (cannot be removed from your deck)
7 Jun 2024Solstice card: Strength/DexterityInternal playtest
Solstice card: Strength/Dexterity increased from 3 to 5 (upgraded 4 to 7)

Internal playtest notes are from before the Early Access release. Names and numbers in them can differ from the game today.

Ethereal Exhaust Innate Retain Sly Unplayable

Purchase today

If you haven't bought Slay The Spire 2 yet, it's time. Support the devs, they made an amazing game.

Get it on Steam