Hakar Kul, Bound by Blood

Eminence-As long as Hakar Kul, Bound by Blood
is in the command zone or on the battlefield,
anytime a nontoken creature with power 4 or
greater enters the battlefield under your control,
create a 3/1 black/red Draconic-Vampire token
with Feed.
Feed, Flying
This creature costs {1} less to cast for every
creature sacrificed this turn.