Muldrotha, the Gravetide, Kaya's Ghostform, Altar of Dementia, and Lion's Eye Diamond

Prerequisites

• Muldrotha, the Gravetide on the battlefield
• Kaya's Ghostform on the battlefield
• Altar of Dementia on the battlefield
• Lion's Eye Diamond on the battlefield
• Kaya's Ghostform attached to Muldrotha

Steps

1. Activate Altar of Dementia by sacrificing Muldrotha
2. Kaya's Ghostform triggers, returning Muldrotha to the battlefield
3. Resolve the Altar of Dementia's ability, causing target player to mill six cards
4. Activate Lion's Eye Diamond by sacrificing it and discarding your hand, adding
5. Cast Kaya's Ghostform from your graveyard by paying , targeting Muldrotha
6. Cast Lion's Eye Diamond from your graveyard by paying
7. Repeat

Results

• Infinite colored mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill