Animation Module + Skyknight Squire + Phyrexian Altar

Animation Module

Skyknight Squire

Phyrexian 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, Skyknight Squire triggers, putting a +1/+1 counter on it.
4. Animation Module triggers, holding priority, activate Phyrexian Altar by sacrificing the Servo, adding 1.
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 delightful loop turns the continuous arrival of new recruits into a self-sustaining engine of growth and sacrifice. As Animation Module rewards every influx of counters by offering tokens for a modest fee, Skyknight Squire steps in to ensure that each new Servo entering the battlefield immediately triggers its own growth with a fresh +1/+1 counter. That counter instantly repays the favor by fueling Animation Module all over again, while Phyrexian Altar stands ready to harvest the newly minted Servo for the exact mana needed to keep the cycle spinning.