Stalwart Successor, Goblin Bombardment, and Lingering Tormentor

Prerequisites

• Stalwart Successor on the battlefield
• Goblin Bombardment on the battlefield
• Lingering Tormentor on the battlefield

Steps

1. Activate Goblin Bombardment by sacrificing Lingering Tormentor When Lingering Tormentor dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
2. When Lingering Tormentor enters, Stalwart Successor triggers, putting a +1/+1 counter on Lingering Tormentor Resolve the Goblin Bombardment ability
3. Repeat

Results

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