Siegehorn Ceratops + Animation Module + Mana Echoes + Terror of the Peaks

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 Terror of the Peaks and Mana Echoes.
5. 5Resolve the Mana Echoes trigger, adding for each Servo you control.
6. 6Resolve the Terror of the Peaks 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 tokens