Siegehorn Ceratops, Animation Module, Mana Echoes, and Warstorm Surge

Prerequisites

• Siegehorn Ceratops on the battlefield
• Animation Module on the battlefield
• Mana Echoes on the battlefield
• Warstorm Surge on the battlefield
• You have a way to deal non-lethal damage to Siegehorn Ceratops
• available

Steps

1. Deal damage to Siegehorn Ceratops
2. Siegehorn Ceratops triggers, putting two +1/+1 counters on itself
3. Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token
4. The Servo enters the battlefield, triggering Warstorm Surge and Mana Echoes
5. Resolve the Mana Echoes trigger, adding for each Servo you control
6. Resolve the Warstorm Surge trigger, dealing 1 damage to Siegehorn Ceratops
7. Repeat from step 2

Results

• Infinite +1/+1 counters on Siegehorn Ceratops
• Infinite colorless mana
• Infinite creatue tokens
• Infinite ETB