Al'eex, Chaotic Tinkerer

Whenever an opponent sacrifices an artifact or creature, create a treasure token.
{b/r}{t}, sacrifice an artifact or creature:
target opponent sacrifices an artifact or creature.
{1}{u/b}{u/b}, sacrifice 2 artifacts: Exile a creature card
from a graveyard, then put a copy of
that creature onto the battlefield under your
control.