Renegale, Twilight Assassin

First Strike, Deathtouch
Renegale, Twilight Assassin has power
equal to the number of creature cards in
opponents' graveyards.
{b/g}{b/g}, Discard an Elf or Rogue card:
Return Renegale, Twilight Assassin from
your graveyard into the battlefield. Play
this ability only if Renegale is in your
graveyard.