Tranquility

All creatures gain "{2}{u},{t}: Return target creature to its owner's hand".

Recite a Limerick: Counter target spell.

Any player may recite a Limerick to counter this action. Any one Limerick may only be recited once.

At the beginning of your end step, if you control Serenity, Vitality, and U.S. Taxpayer, you win the game.