Rakkshire, Skeleton Dragon

Intimidate, Flying
When Rakkshire enters the battlefield, sacrifice a creature. Each opponent loses X health, where X is the converted mana cost of the sacrificed creature.
{x}{b}{b}{b}{t}: Put X +1/+1 counters on Rakkshire.
When Rakkshire is put into a graveyard, you may search your library for a nonland permanent and put it onto the battlefield.