Kaito, Bane of Nightmares

Ninjutsu 1UB (1UB, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
During your turn, as long as Kaito has one or more loyalty counters on him, he's a 3/4 Ninja creature and has hexproof.
[+1]: You get an emblem with "Ninjas you control get +1/+1."
[0]: Surveil 2. Then draw a card for each opponent who lost life this turn.
[-2]: Tap target creature. Put two stun counters on it.