Muldrotha, the Gravetide + Displacer Kitten + Umbral Collar Zealot + Longshot, Rebel Bowman

Muldrotha, the Gravetide

Displacer Kitten

Umbral Collar Zealot

Longshot, Rebel Bowman

How it works

1. Cast the artifact from your graveyard by paying 0.
2. Displacer Kitten and Longhsot trigger.
3. Resolve the Displacer Kitten trigger, blinking Muldrotha.
4. Resolve the Longshot trigger, dealing 2 damage to each opponent.
5. Activate Umbral Collar Zealot by sacrificing the artifact.
6. Repeat.

This crafty loop hinges on Longshot, Rebel Bowman's passive cost reduction, which drops the artifact you are recasting straight from your graveyard to a cost of zero. Each time you cast that free artifact, Displacer Kitten blinks Muldrotha, the Gravetide to reset its graveyard-casting permissions while Umbral Collar Zealot cheerfully feeds the artifact back into the yard with its surveil sacrifice ability. Meanwhile, Longshot, Rebel Bowman triggers on every single cast to turn your endless cycle into a lethal barrage of damage for your opponents.