Muldrotha, the Gravetide + Displacer Kitten + Grinding Station + Foundry Inspector

Muldrotha, the Gravetide

Displacer Kitten

Grinding Station

Foundry Inspector

How it works

1. Cast the artifact from your graveyard by paying 0.
2. Displacer Kitten triggers, blinking Muldrotha.
3. When the artifact enters, Grinding Station triggers, untapping Grinding Station.
4. Activate Grinding Station by tapping it and sacrificing the artifact.
5. Repeat.

This ingenious loop lets you grind through your entire library by weaponizing Muldrotha, the Gravetide's generous graveyard-playing ability alongside the clever blink trigger of Displacer Kitten. With Foundry Inspector sliding into play to make sure your artifact costs are completely mitigated, you can continuously replay your artifacts from the graveyard for zero mana. Every time you cast that noncreature spell, Displacer Kitten blinks Muldrotha to keep the engine fresh, while Grinding Station happily untaps upon the artifact's entry so you can sacrifice it right back to mill away your deck.