Umbral Collar Zealot, Naru Meha, Master Wizard, and Extract from Darkness

Prerequisites

• Umbral Collar Zealot on the battlefield
• Naru Meha, Master Wizard in hand
• Extract from Darkness in hand
• available

Steps

1. Cast Extract from Darkness by paying its mana cost Holding priority, cast Naru Meha by paying its mana cost
2. When Naru Meha enters, it triggers, targeting Extract from Darkness
3. Holding priority, activate Umbral Collar Zealot by sacrificing Naru Meha
4. Resolve the Naru Meha trigger, copying Extract from Darkness Resolve the Extract from Darkness copy, causing each player to mill two cards and returning Naru Meha from your graveyard to the battlefield
5. Repeat from step 3

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite mill
• Infinite self-mill
• Infinite magecraft triggers
• Infinite surveil 1