Junji, the Midnight Sky + Altar of Dementia + Metamorphosis Fanatic + Syr Vondam, Sunstar Exemplar

Junji, the Midnight Sky

Altar of Dementia

Metamorphosis Fanatic

Syr Vondam, Sunstar Exemplar

How it works

1. Activate Altar of Dementia by sacrificing Metamorphosis Fanatic.
2. When Metamorphosis Fanatic dies, Syr Vondam triggers, putting a +1/+1 counter on it and causing you to gain 1 life.
3. Resolve the Altar of Dementia ability.
4. Activate Altar of Dementia by sacrificing Junji.
5. When Junji dies, it and Syr Vondam trigger.
6. Resolve the Syr Vondam trigger, putting a +1/+1 counter on it and causing you to gain 1 life.
7. Resolve the Junji trigger, returning Metamorphosis Fanatic from your graveyard to the battlefield and causing you to lose 2 life.
8. When Metamorphosis Fanatic enters, it triggers, returning Junji from your graveyard to the battlefield.
9. Resolve the Altar of Dementia ability.
10. Repeat.

This cunning loop relies on an infinite cycle of sacrifice and resurrection to grind down your opponents and pump your board. You begin by using Altar of Dementia to sacrifice Metamorphosis Fanatic and Junji, the Midnight Sky, feeding Altar of Dementia's mill ability while triggering Syr Vondam, Sunstar Exemplar to steadily grow larger and keep your life total stable. Every time Junji hits the graveyard, its death trigger pulls Metamorphosis Fanatic right back out, and when Metamorphosis Fanatic enters the battlefield, its own ability immediately returns Junji to the field to do it all over again.