Felidar Guardian, Liliana, Death's Majesty, and Goblin Bombardment

Prerequisites

• Felidar Guardian on the battlefield
• Liliana, Death's Majesty on the battlefield
• Goblin Bombardment on the battlefield

Steps

1. Sacrifice Felidar Guardian to Goblin Bombardment to deal 1 damage
2. Activate Liliana's -3 ability to return Felidar Guardian to the battlefield from your graveyard
3. When Felidar Guardian enters the battlefield, exile Liliana and return it to the battlefield with 5 loyalty
4. Repeat

Results

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