Naru Meha, Master Wizard, Unbreakable Bond, and Yahenni, Undying Partisan

Prerequisites

• Naru Meha, Master Wizard in hand
• Unbreakable Bond in hand
• Yahenni, Undying Partisan on the battlefield
• available

Steps

1. Cast Unbreakable Bond by paying its mana cost
2. Holding priority, cast Naru Meha by paying its mana cost
3. When Naru Meha enters, it triggers, targeting Unbreakable Bond
4. Holding priority, activate Yahenni by sacrificing Naru Meha, Resolve the Naru Meha trigger, copying Unbreakable Bond Resolve the Unbreakable Bond copy, returning Naru Meha from your graveyard to the battlefield
5. Repeat from step 3

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite magecraft triggers