Grimgrin, Corpse-Born, Animation Module, and Pitiless Plunderer

Prerequisites

• Grimgrin, Corpse-Born on the battlefield
• Animation Module on the battlefield
• Pitiless Plunderer on the battlefield
• Paradise Mantle attached to Grimgrin
• Grimgrin does not have summoning sickness
• You control at least one additional creature

Steps

1. Activate Grimgrin by sacrificing a creature
2. The creature dies, triggering Pitiless Plunderer, creating a Treasure token
3. Activate the Treasure by tapping and sacrificing it, adding
4. Resolve the Grimgrin ability, untapping it and putting a +1/+1 counter on it
5. Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token
6. Repeat

Results

• Infinite +1/+1 counters on Grimgrin
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers