The Red Terror + Animation Module + Ashnod's Altar + Terror of the Peaks

The Red Terror

Animation Module

Ashnod's Altar

Terror of the Peaks

How it works

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

This brilliant loop turns a single creature entering the battlefield into an unstoppable cascade of fiery destruction. As Terror of the Peaks reacts to each new arrival by dealing damage, The Red Terror converts that damage into a steady stream of +1/+1 counters on itself. Those growing counters awaken Animation Module, allowing you to continually pay the {1} activation cost to forge 1/1 Servo artifact creature tokens that restart the whole cycle. Finally, sacrificing those very same Servos to Ashnod's Altar provides more than enough colorless mana to sustain the loop while generating endless damage, entries, and sacrifices.