Muldrotha, the Gravetide + Displacer Kitten + Grinding Station + Lyse Hext

Muldrotha, the Gravetide

Displacer Kitten

Grinding Station

Lyse Hext

How it works

1. Cast the artifact from your graveyard by paying 0.
2. Displacer Kitten and Lyse's prowess ability trigger.
3. Resolve the Displacer Kitten trigger, blinking Muldrotha.
4. Resolve the Lyse trigger, giving it +1/+1 counter on it.
5. When the artifact enters, Grinding Station triggers, untapping Grinding Station.
6. Activate Grinding Station by tapping it and sacrificing the artifact.
7. Repeat.