Last Laugh, Polyraptor, and Spawning Pit

Prerequisites

• Last Laugh on the battlefield
• Polyraptor on the battlefield
• Spawning Pit on the battlefield
• You control at least one additional creature

Steps

1. Activate Spawning Pit's first ability by sacrificing another creature
2. When the creature dies, Last Laugh's first ability triggers, dealing 1 damage to each creature and each player
3. Polyraptor triggers, creating a token copy of itself
4. Resolve the Spawning Pit ability, putting a charge counter on it
5. Repeat, sacrificing the damaged Polyraptor instead

Results

• Near-infinite charge counters on Spawning Pit
• Near-infinite damage
• Near-infinite death triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite sacrifice triggers