Ash, Silent Assassin

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Ninjutsu {2}{p/u}{p/b}{p/b} (Return an unblocked attacker
you control to your hand: Put this card onto the
battlefield from your hand tapped and attacking.)
Whenever Ash deals combat damage to a player,
until the beginning of your next upkeep, if that
player would gain life, they lose twice that much
life instead.