Defiler of Flesh + Aetherflux Reservoir + Gravecrawler + Ashnod's Altar

Defiler of Flesh

Aetherflux Reservoir

Gravecrawler

Ashnod's Altar

How it works

1. Activate Ashnod's Altar by sacrificing Gravecrawler, adding CC.
2. Cast Gravecrawler from your graveyard by paying 2 life.
3. Aetherflux Reservoir and Defiler of Flesh trigger.
4. Resolve the Aetherflux Reservoir trigger, causing you to gain 1 life for each spell you've cast this turn.
5. Resolve the Defiler of Flesh trigger, giving target creature +1/+1 and menace until end of turn.
6. Repeat.
7. Once you have infinite life, you may activate Aetherflux Reservoir's ability to deal infinite damage to any target(s).

This clever loop turns the undead persistence of Gravecrawler into an engine of absolute victory by utilizing Ashnod's Altar to repeatedly harvest the zombie for raw colorless mana. With Defiler of Flesh on the battlefield, you can bypass Gravecrawler's standard mana costs entirely by paying life instead, creating a closed-loop exchange where every sacrifice fuels the next casting. Meanwhile, Aetherflux Reservoir quietly tracks your endless spellcasts, rapidly inflating your life total into the stratosphere until you have enough reserves to fire off a lethal blast of 50 damage directly to any target.