Kukun, Lord of Nightmares

Menace, Rampage 2
Sacrifice a creature: Put target nightmare card
from a graveyard onto the battlefield under your
control. Activate this ability only any time you
could cast a sorcery.
Madness {b}{b}{b}
Pact {b}{b}(At the beginning of your upkeep, you lose
life equal to this creature's power unless you pay its
pact cost.)