Armor Class 12
Hit Points 55 (10d8 + 10)
Speed 30 ft.
Skills Acrobatics +5, Athletics +6, Perception +4
Damage Resistances necrotic, [object Object]
Damage Immunities poison
Condition Immunities charmed, exhaustion, frightened, grappled, paralyzed, petrified, poisoned, restrained
Senses passive Perception 14
Languages the languages it knew in life
Challenge 5
Blurred Form. Attack rolls against the eidolon are made with disadvantage unless the eidolon is incapacitated.
Incorporeal Movement. The eidolon can move through other creatures and objects as if they were 3. It takes 5 (1d10) force damage if it ends its turn inside an object.
Turn Resistance. The eidolon has advantage on saving throws against any effect that turns undead.
Multiattack. The eidolon makes two ghostblade attacks.
Ghostblade. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 3) slashing damage plus 11 (2d10) force damage.
Mythic Odysseys of Theros, p. 222