Muldrotha, the Gravetide + Displacer Kitten + Temur Battlecrier + Phantom Train

Muldrotha, the Gravetide

Displacer Kitten

Temur Battlecrier

Phantom Train

How it works

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

This crafty loop hinges on Muldrotha, the Gravetide's ability to repeatedly resurrect an artifact from your graveyard, ensuring you always have fodder for Phantom Train's sacrifice ability. Each time you recast that artifact for free—thanks to Temur Battlecrier's cost reduction—Displacer Kitten triggers to blink Muldrotha, clearing the state-based rules so you can cast the artifact from the graveyard again. Meanwhile, Phantom Train grows steadily larger with every iteration by consuming the artifact you just replayed, letting you convert this endless cycle into infinite artifact and creature sacrifices, enters-the-battlefield triggers, and massive +1/+1 counters.