Animation Module, War Elemental, Ashnod's Altar, and Pandemonium

Prerequisites

• Animation Module on the battlefield
• War Elemental on the battlefield
• Ashnod's Altar 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. War Elemental's second ability 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 Ashnod's Altar 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 War Elemental
• Infinite colorless mana
• Infinite creature tokens
• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers