Mirage

Purgatory

Whenever a summon card is put into your graveyard from play, put that card face up under Purgatory.
During your upkeep, you may pay o4 and 2 life to put any card under Purgatory into play as though it were just played.
If Purgatory leaves play, remove all cards under if from the game.

Whenever a nontoken creature is put into your graveyard from the battlefield, exile that card.
At the beginning of your upkeep, you may pay {4} and 2 life. If you do, return a card exiled with Purgatory to the battlefield.