Siegehorn Ceratops + Animation Module + Ashnod's Altar + Warstorm Surge

Prerequisites

• You have a way to deal non-lethal damage to Siegehorn Ceratops.

Steps

1. 1Deal damage to Siegehorn Ceratops.
2. 2Siegehorn Ceratops triggers, putting two +1/+1 counters on itself.
3. 3Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token.
4. 4The Servo enters the battlefield, triggering Warstorm Surge.
5. 5Holding priority, activate Ashnod's Altar by sacrificing the Servo, adding .
6. 6Resolve the Warstorm Surge trigger, dealing 1 damage to Siegehorn Ceratops.
7. 7Repeat from step 2.

Effects

• Infinite +1/+1 counters on a creature
• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite creature tokens
• Infinite death triggers