Zebra Fish, Pumped Fish

+4: Summon 2 2/2 creatures with haste. If they die during your turns, attach a 2 +2/+2 for target creatures.
-2: These Zebra fishes become 2 creatures that can only be killed by blue creatures. This applies until end of turn. They have 4/4
-X: All spells in graveyards have flashback, but only you can summon them. They cost -X mana less and fit with your mana. Only until end of turn.