The Red Terror, Animation Module, Krark-Clan Ironworks, and Pandemonium

Prerequisites

• The Red Terror on the battlefield
• Animation Module on the battlefield
• Krark-Clan Ironworks on the battlefield
• Pandemonium on the battlefield
• You have a way to cause a creature with power 1 or greater to enter the battlefield under your control
• available

Steps

1. Cause a creature to enter the battlefield under your control
2. Pandemonium triggers, dealing damage to an opponent equal to the creature's power
3. The Red Terror triggers, putting a +1/+1 counter on itself
4. Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token
5. When the Servo enters the battlefield, Pandemonium triggers
6. Holding priority, activate Krark-Clan Ironworks by sacrificing the Servo, adding
7. Resolve the Pandemonium trigger, dealing 1 damage to an opponent
8. Repeat from step 3

Results

• Infinite +1/+1 counters on The Red Terror
• Infinite colorless mana
• Infinite creature tokens
• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers