Korsaque & Mary

Pay {w/b}{w/b} when Korsaque & Mary enters the battlefield to treat this as a 4/5 creature w/haste.
Otherwise, this card can only be used after your opponent has swung at you or a planeswalker you control, and you have successfully blocked with a creature, yet both are going to die.
Your creature gains +0/+4 until end of turn. Add
the creature your opponent swung with to your
hand; with the ability to treat any color mana as another color mana in order to summon card.