Sadric, Bog Dredger

Whenever a nontoken creature you control dies, you may pay {b}{g}. If you do,
exile it and draw a card.
{b/g}{b/g}{b/g}, Shuffle a creature exiled by
Sadric, Bog Dredger into your deck: Give
target creature +X/+Y or -X/-Y until end of turn,
where X is the power of the removed creature and
Y is the toughness of the removed creature.