Havengul Lich + Shambling Ghast + Carrion Feeder + Delney, Streetwise Lookout

Havengul Lich

Shambling Ghast

Carrion Feeder

Delney, Streetwise Lookout

How it works

1. Activate Havengul Lich by paying 1, allowing you to cast Shambling Ghast card from your graveyard this turn.
2. Cast Shambling Ghast from your graveyard by paying .
3. Activate Carrion Feeder by sacrificing Shambling Ghast.
4. When Shambling Ghast dies, it triggers twice, creating two Treasure tokens.
5. Resolve the Carrion Feeder ability.
6. Activate the Treasures by tapping and sacrificing them, adding 1
7. Repeat.

This clever loop puts Havengul Lich's graveyard-casting ability to work by turning a single mana into a repeatable engine, all while Carrion Feeder acts as the ultimate sacrifice outlet to fuel the cycle. Because Shambling Ghast has a power of 2 or less, Delney, Streetwise Lookout steps in to double its death trigger, turning a single sacrifice into two Treasure tokens instead of one. Those very Treasures pay for the loop's mana costs with a profit, feeding infinite growth onto Carrion Feeder and generating endless artifact and creature triggers.