Naru Meha, Master Wizard, Grimgrin, Corpse-Born, and Unbreakable Bond

Prerequisites

• Naru Meha, Master Wizard in hand
• Grimgrin, Corpse-Born on the battlefield
• Unbreakable Bond in hand
• 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 Grimgrin by sacrificing Naru Meha, putting a +1/+1 counter on Grimgrin and untapping it
5. Resolve the Naru Meha trigger, copying Unbreakable Bond Resolve the Unbreakable Bond copy, returning Naru Meha from your graveyard to the battlefield
6. Repeat from step 3

Results

• Infinite +1/+1 counters on a creature
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite magecraft triggers