Requires

Animation Module must be on the battlefield. War Elemental must be on the battlefield. Krark-Clan Ironworks must be on the battlefield. Pandemonium must be on the battlefield. You have a way to cause a creature with power 1 or greater to enter the battlefield under your control. Mana needed:

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 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