Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Slurrk, All-Ingesting, and Goblin Bombardment

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Slurrk, All-Ingesting on the battlefield
• Goblin Bombardment on the battlefield

Steps

1. Activate Goblin Bombardment by sacrificing Slurrk
2. When Slurrk dies, its innate ability and persist ability trigger
3. Resolve Slurrk's innate ability, putting a +1/+1 counter on each creature you control that already has a +1/+1 counter on it
4. Resolve Slurrk's persist ability, returning it from your graveyard to the battlefield with four +1/+1 counters on it due to its replacement effect
5. Resolve the Goblin Bombardment ability
6. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite damage
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite +1/+1 counters on certain creatures