Invasion

White spells you cast cost W more to cast.

Black spells you cast cost B more to cast. B: This creature gets +1/+1 until end of turn.

Green spells you cast cost G more to cast.

UU, T: Return target creature to its owner's hand. RR, T: This creature deals 2 damage to target creature.

Flying At the beginning of your upkeep, you may return target creature card from your graveyard to the battlefield.

Flying Blue spells you cast cost U more to cast.