Mikaeus of Hallowed Halls

Creature tokens you control get +1/+1 and have deathtouch.
Whenever a spirit you control deals combat damage to a player, you may pay {w/b}{w/b}. If you do, return Mikaeus of Hallowed Halls from your graveyard to the battlefield tapped.
Afterlife 2 (When this creature dies, create two 1/1 white and black Spirit creature tokens with flying)