Macabre Hydra

Deathtouch

Whenever one or more cards leave a player's
graveyard, put a +1/+1 counter on Macabre Hydra.

{t}: Target player exiles a card from their
graveyard. If they can't, they lose life equal to
Macabre Hydra's power. Until end of turn you
may play that card and mana of any type can be
spent to cast that spell.