Stalwart Successor, Goblin Bombardment, and Glen Elendra Archmage

Prerequisites

• Stalwart Successor on the battlefield
• Goblin Bombardment on the battlefield
• Glen Elendra Archmage on the battlefield

Steps

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

Results

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