Mortuary + Cruel Celebrant + Phyrexian Dreadnought + Gwenom, Remorseless

Mortuary

Cruel Celebrant

Phyrexian Dreadnought

Gwenom, Remorseless

How it works

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