WritheUnplayable.
Innate.

Curse

Innate: Start each combat with this card in your Hand.
Unplayable: Unplayable cards cannot be played.

Writhe

Obtained

random Curse fromNeow's Bonesoffered byNeow·Neow's Bonesrandom Curse fromSere Talonoffered byVakuu·Sere Talonrandom Curse fromCursed Run

Slay the Spire

Same in Slay the Spire

Mentioned in

Slay the Spire 2 act 2 elites: Decimillipede, Entomancer and Infested Prism