Greatwolf Sif

Defender, Firststrike, Trample
At the beginning of your upkeep if there are no
black cards in graveyards Greatwolf Sif loses
Defender. If not exile up to 2 target cards in
graveyards. If it was a nonblack card you gain 2
life If it was a Black card draw a card.

His master's legacy is long lost after being corrupted
by Abyss, yet he remains at his grave. Ever watchful.