Animation Module + War Elemental + Phyrexian Altar + Warstorm Surge

Prerequisites

• You have a way to cause a creature with power 1 or greater to enter the battlefield under your control.

Steps

1. 1Cause a creature to enter the battlefield under your control.
2. 2Warstorm Surge triggers, dealing damage to an opponent equal to the creature's power.
3. 3War Elemental's second ability triggers, putting a +1/+1 counter on itself.
4. 4Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token.
5. 5When the Servo enters the battlefield, Warstorm Surge triggers.
6. 6Holding priority, activate Phyrexian Altar by sacrificing the Servo, adding .
7. 7Resolve the Warstorm Surge trigger, dealing 1 damage to an opponent.
8. 8Repeat from step 3.

Effects

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