Ravenous Rats

Flying

Return target permanent to its owner's hand.

Counter target spell.

Flying (This creature can't be blocked except by creatures with flying or reach.) This creature can block only creatures with flying.

Counter target spell. Search its controller's graveyard, hand, and library for all cards with the same name as that spell and exile them. Then that player shuffles.

Tap all creatures without flying.

When this creature enters, return each other creature you control to its owner's hand.

Counter target creature spell.