Putrid Goblin, Sling-Gang Lieutenant, and Gorma, the Gullet

Prerequisites

• Putrid Goblin on the battlefield
• Sling-Gang Lieutenant on the battlefield
• Gorma, the Gullet on the battlefield

Steps

1. Activate Sling-Gang Lieutenant by sacrificing Putrid Goblin
2. When Putrid Goblin dies, its persist ability and Gorma trigger
3. Resolve the Putrid Goblin trigger, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Gorma
4. Resolve the Gorma trigger, putting a +1/+1 counter on it
5. Resolve the Sling-Gang Lieutenant ability
6. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite lifegain
• Infinite lifegain triggers
• Infinite lifeloss
• Infinite sacrifice triggers
• Infinite +1/+1 counters on a creature