Cthulhu, The Elder God

At the beginning of your attack step, all
opponents lose one sanity (They start with 40
sanity) If they have 0 or less sanity, they lose the
game
Indestructible, Hexproof, Sacrifice Proof,
EVERYTHING PROOF, First Strike, Quintuple Strike
{u/b}{u/b}: place 10 2/2 ghoul token creatures onto the battlefield