Council of Ghosts is an event in The City, act 2 of Slay the Spire. Accepting costs half your max HP and gives Apparitions. You can also refuse.

What you get

Below Ascension 15Ascension 15 and up
Apparitions53
Max HP lostHalf your max HP, rounded upSame

The max HP loss never takes you below 1 max HP.

Apparition: 1 energy, Skill. Gain 1 Intangible. Ethereal, Exhaust. Upgraded, it loses Ethereal. Intangible reduces every hit you take that turn to 1 damage.

Max HP lost by character

Based on starting max HP. From Ascension 14 each character starts with less max HP, so the loss is slightly lower.

CharacterMax HPLostLeft
Ironclad804040
Silent703535
Defect753837
Watcher723636

Any max HP you gained before the event raises the loss too, since it is half of your current max HP.

What the trade means

  • Each Apparition makes one turn cost you at most 1 damage per hit. Five Apparitions cover five turns; three at Ascension 15 cover three.
  • Apparition is Ethereal: if you do not play it the turn you draw it, it Exhausts. Upgrading removes that.
  • Apparition Exhausts when played, so each one works once per combat.
  • Lower max HP also lowers every heal based on max HP, such as resting for 30% of max HP.

See event requirements and act lists for the other act 2 events.