Hikoro, Mindbender

Ninjutsu - {1}{u}{u}{b}, Reveal another Ninja card from your hand. ({1}{u}{u}{b}, Reveal another Ninja card from your hand, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Shen, Mind-Cleaver deals combat damage to a player, gain control of target nonland permanent that player controls.
He doesn't have enemies -- for very long.