Sa Chor, Hidden Tempest

: Whenever a creature you control with deathtouch deals damage to a player or planeswalker, draw a card.
+1: Target creature gets +1/+1 and gains deathtouch until end of turn. If that creature is an Assassin, it can't be blocked this turn.
-2: Return target nonland permanent to its owner's hand, then that player discards a card.