Hell angel

Flying, menace, vigilance
Hell angel gets deathtouch when attacking and lifelink when blocking.
Whenever a white or black creature you control dies, Hell angel may deals damage equal to its toughness to target planeswalker or player.
Sacrifice a white creature: Hell angel gets +2/+2, if its the sixth creature you sacrifice, Hell angel gets hexproof, lifelink,first strike and deathtouch.