Skeletal Samurai

Afflict 3 (Whenever this creature becomes blocked, defending player loses 3 life)
Unrelenting Will {b}{g} ({b}{g}: Return this card from your graveyard to the battlefield. It gains haste and +2/+2. Exile it at the beginning of the next end step or if would leave the battlefield. Cast this ability only as a sorcery.)
"Even in the afterlife, I will carry out my duty."