Animation Module + Serra Redeemer + Ashnod's Altar

Animation Module

Serra Redeemer

Ashnod's Altar

How it works

1. Put a +1/+1 counter on a creature you control.
2. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
3. When the Servo enters the battlefield, Serra Redeemer triggers, putting two +1/+1 counters on the Servo.
4. Animation Module triggers, holding priority, activate Ashnod's Altar by sacrificing the Servo, adding CC.
5. Resolve the Animation Module trigger, causing you to pay 1 to create a 1/1 Servo artifact creature token.
6. Repeat from step 3.

This brilliant loop turns a single +1/+1 counter into an endless cycle of creation and sacrifice, fueled by Animation Module's ability to turn counter placements into Servo tokens. As each new Servo enters the battlefield, Serra Redeemer instantly welcomes it with a pair of +1/+1 counters, which in turn feeds Animation Module's trigger once again. By feeding those very same Servos into Ashnod's Altar, you generate more than enough colorless mana to pay the Module's ongoing cost while netting infinite sacrifices, triggers, and artifact tokens along the way.