Muldrotha, the Gravetide, Displacer Kitten, Extruder, and Cemetery Prowler

Prerequisites

• Muldrotha, the Gravetide on the battlefield
• Displacer Kitten on the battlefield
• Extruder on the battlefield
• Cemetery Prowler on the battlefield

Steps

1. Cast the artifact from your graveyard using Muldrotha's ability by paying due to Cemetery Prowler
2. Displacer Kitten triggers, blinking Muldrotha, allowing you to use its ability again this turn
3. Resolve the artifact spell
4. Activate Extruder by sacrificing the artifact, putting a +1/+1 counter on a creature Repeat

Results

• Infinite +1/+1 counters on creatures you control
• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite creature ETB
• Infinite creature LTB
• Infinite storm count