Nether Traitor, Kheru Goldkeeper, Spawning Pit, and Insidious Roots

Prerequisites

• Nether Traitor on the battlefield
• Kheru Goldkeeper on the battlefield
• Spawning Pit on the battlefield
• Insidious Roots on the battlefield
• available

Steps

1. Activate Spawning Pit by sacrificing Nether Traitor
2. Activate Spawning Pit by sacrificing another creature
3. When the creature dies, Nether Traitor triggers, causing you to pay to return Nether Traitor from your graveyard to the battlefield
4. Kheru Goldkeeper and Insidious Roots triggers, creating a Treasure token and a creature token Resolve the Spawning Pit ability
5. Activate the Treasure by tapping and sacrificing it, adding
6. Repeat

Results

• Infinite +1/+1 counters on certain creatures
• Infinite charge counters on a permanent
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers