Sun Titan, Goblin Bombardment, and Unhallowed Pact

Prerequisites

• Sun Titan on the battlefield
• Goblin Bombardment on the battlefield
• Unhallowed Pact on the battlefield

Steps

1. Activate Goblin Bombardment by sacrificing Sun Titan
2. When Sun Titan dies, Unhallowed Pact triggers, returning Sun Titan from your graveyard to the battlefield
3. When Sun Titan enters, it triggers, returning Unhallowed Pact from your graveyard to the battlefield attached to Sun Titan
4. Resolve the Goblin Bombardment ability
5. Repeat

Results

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