Exhume, Ashnod's Altar, and Naru Meha, Master Wizard

Prerequisites

• Exhume in hand
• Ashnod's Altar on the battlefield
• Naru Meha, Master Wizard in hand
• available

Steps

1. Cast Exhume by paying its mana cost Holding priority, cast Naru Meha by paying its mana cost
2. When Naru Meha enters, it triggers, targeting Exhume
3. Holding priority, activate Ashnod's Altar by sacrificing Naru Meha
4. Resolve the Naru Meha trigger, copying Exhume Resolve the Exhume copy, 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 colorless mana
• Infinite magecraft triggers
• Each opponent returns all creature cards from their graveyard to the battlefield