Animation Module + Ashnod's Altar + Light of Promise + Thunder of Unity

Animation Module

Ashnod's Altar

Light of Promise

Thunder of Unity

How it works

1. Gain life.
2. The creature with Light of Promise attached triggers, putting a +1/+1 counter on it.
3. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
4. When the Servo enters, Thunder of Unity triggers, causing you to gain life and each opponent to lose life
5. The creature with Light of Promise attached triggers. Holding priority, activate Ashnod's Altar by sacrificing the Servo, adding CC.
6. Resolve the trigger from the creature with Light of Promise attached, putting a +1/+1 counter on it
7. Repeat from step 3.

This loop begins when an initial source of life gain triggers your enchanted creature, which has been granted a massive burst of growth thanks to Light of Promise. That lifegain event places a +1/+1 counter on the creature, instantly waking up Animation Module's triggered ability to churn out a Servo artifact creature token for the low cost of one mana. As that Servo enters the battlefield, Thunder of Unity triggers to pad your life total and drain your opponents, which in turn loops right back into Light of Promise. Finally, Ashnod's Altar acts as the engine's financial heart, letting you sacrifice the newly minted Servo for a pair of colorless mana to pay for Animation Module's fee while generating an endless chain of sacrifices and life swings.