Carrion Catapult

Plague 1 (This permanent enters play with 1 -1/-1 counter, and "Until the end of the turn this enters
play, you may exile a creature card from your
graveyard with a converted mana cost of 1 or more to
move that counter to 1 creature.")
{x}, {t}: Exile a creature card from your graveyard
with a converted mana cost of X. Put a -1/-1
counter on X target creatures.