Rikichi, the Serpent's Sting

Heirloom (when this creature enters the battlefield,
you may search your library for an Heirloom card,
reveal it, put it into your hand, then shuffle.)
{1}{u}{b},{t}: Target opponent loses 2 life, gets a
poison counter, then mills five cards.
Panther (You can have two commanders if both
have partner.)
"The first breath I take after I kill you, will be the
first breath of my life."