Emma-o, Judge of Souls

Commander ninjutsu {1}{u}{b} ({1}{u}{b}, Return an unblocked attacker you control to hand: Put this card
onto the battlefield from your hand or the command
zone tapped and attacking.)
Flash
First strike
Whenever another creature dies, you may pay
{u}{b} and mill three cards. If you do, exile that
card with four time counters on it. If it doesn't
have suspend, it gains suspend.