Mortuary + Cruel Celebrant + Wild Cantor + Gwenom, Remorseless

Mortuary

Cruel Celebrant

Wild Cantor

Gwenom, Remorseless

How it works

1. Activate Wild Cantor by sacrificing it.
2. When Wild Cantor dies, Mortuary and Cruel Celebrant trigger.
3. Resolve the Mortuary trigger, putting Wild Cantor from your graveyard onto the top of your library.
4. Resolve the Cruel Celebrant trigger, causing you to gain 1 life and each opponent to lose 1 life.
5. Cast Wild Cantor from the top of your library by paying 1 life.
6. Repeat.