Genius Society 81 Ruan Mei

When Genius Society 81 Ruan Mei enters the battlefield and at the start of your upkeep, create a
0/1 green Cat Cake artifact creature token with
"{2}{t}, sacrifice this artifact: Gain 2 life."
Whenever you sacrifice a creature, lose 2 life and choose one:
• Return target creature from your graveyard to the battlefield with a finality counter
• Defending creatures get 0/-2 until the end of the turn