Stalwart Successor, Goblin Bombardment, and Obstinate Gargoyle

Prerequisites

• Stalwart Successor on the battlefield
• Goblin Bombardment on the battlefield
• Obstinate Gargoyle on the battlefield

Steps

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

Results

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