Sha-Kalar of the Soulless

Creatures your opponent's control get -1/-1 for
each card you have discarded this turn.
Buried—If you have discarded a card
this turn, Sha-Kalar gains "{2}, discard a card,
sacrifice a non-Spirit creature you
control: Create a token that's a copy of the
sacrificed creature, except it is a Spirit in
addition to it's other types."