Koll, the Forgemaster, Deathrender, and Goblin Bombardment

Prerequisites

• Koll, the Forgemaster on the battlefield
• Deathrender on the battlefield
• Goblin Bombardment on the battlefield
• Deahrender attached to another nontoken creature you control

Steps

1. Activate Goblin Bombardment by sacrificing the creature with Deathrender attached
2. When the creature dies, Koll and Deathrender trigger
3. Resolve the Koll trigger, returning the creature from your graveyard to your hand
4. Resolve the Deathrender trigger, putting the creature from your hand onto the battlefield and attaching Deathrender to it
5. Resolve the Goblin Bombardment ability from step 1, dealing 1 damage to any target
6. Repeat

Results

• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers