Muldrotha, the Gravetide + Displacer Kitten + Lithatog + Gran-Gran

Muldrotha, the Gravetide

Displacer Kitten

Lithatog

Gran-Gran

How it works

1. Cast the artifact from your graveyard by paying 0.
2. Displacer Kitten triggers, blinking Muldrotha.
3. Activate Lithatog by sacrificing the artifact.
4. Repeat.

This intricate engine leverages Muldrotha, the Gravetide to repeatedly pull a zero-mana artifact right back out of your graveyard, fueling an endless loop of permanent recycling. Every time you cast that artifact, Displacer Kitten's blink ability triggers to reset Muldrotha, while Lithatog stands ready to sacrifice the artifact to pump its own stats and send the card back to the graveyard. Meanwhile, Gran-Gran quietly oversees the operation, filtering your draws and reducing your noncreature spell costs once your graveyard fills with Lessons, tying the whole terrifying spectacle together into an infinite sacrifice machine.