Muldrotha, the Gravetide, Phyrexian Altar, and Kaya's Ghostform

Prerequisites

• Muldrotha, the Gravetide on the battlefield
• Phyrexian Altar on the battlefield
• Kaya's Ghostform on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Muldrotha, adding
2. When Muldrotha dies, Kaya's Ghostform triggers, returning Muldrotha from your graveyard to the battlefield
3. Cast Kaya's Ghostform from your graveyard by paying , attaching it to Muldrotha
4. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count