Great Old One, Cthulhu

Eminence — Whenever you cast another Eldritch
spell or Occult spell create a 1/1 blue black
Cultist creature token, if the Great Old One,
Cthulhu is in the command zone or on the battlefield.
Indestructible, Flying
Madness Shroud: When Great Old One, Cthulhu
enters the battlefield all creatures gain a madness
token. Creatures with madness tokens cannot
attack or block while Great Old One, Cthulhu
is on the field