Warp Rift - Dualblade

When Warp Rift - Dualblade enters, each player sacrifice a creature.

Whenever a creature you control dies, you may pay
3 life. If you do, return that card under your control with a finality counter on it.

Whenever a creature an opponent controls dies, they may pay 3 life. If they don't, return that card under your control with a finality counter on it.