Asmodai, The Redeemer

Master of Repentance—When a Astartes
Warrior Creature Token subtype enters the
battlefield youmay pay {b} to turn them into a 2/2
Fallen with vigilance if so exile it and draw a card
Repent—You may pay {4}{w}to return a 2/2 fallen
with vigilance from exile onto the battlefield if so
they are now a 2/2 Redeemed with vigilance