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

Prerequisites

• Muldrotha, the Gravetide on the battlefield
• Kaya's Ghostform on the battlefield
• Lotus Petal on the battlefield
• Phyrexian Altar on the battlefield
• Kaya's Ghostform attached to Muldrotha

Steps

1. Activate Lotus Petal by tapping and sacrificing it, adding
2. Cast Lotus Petal from your graveyard by paying
3. Activate Phyrexian Altar by sacrificing Muldrotha, adding one mana of any color
4. Kaya's Ghostform trigger, returning Muldrotha to the battlefield
5. Cast Kaya's Ghostfrom from your graveyard by paying , targeting Muldrotha
6. Repeat

Results

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