Baneslayer Werewolf

Menace, Reach, and Scar (This creature may deal
damage to creatures without Scar in the form of
-1/-1 counters.)
{3}{g},{t}: Baneslayer Werewolf and target creature
fight.
At the end of the turn, if Baneslayer Werewolf
damaged a Black, Red or Green creature and
which died, transform Baneslayer Werewolf.
"The fouler the blood, the better the thrill of
humanity's return."