Animation Module + Light of Promise + Lunarch Veteran // Luminous Phantom + Phyrexian Altar

Animation Module

Light of Promise

Lunarch Veteran // Luminous Phantom

Phyrexian Altar

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, Lunarch Veteran triggers if it's on the battlefield.
5. Regardless, activate Phyrexian Altar by sacrificing the Servo, adding 1
6. When the Servo dies, Luminous Phantom triggers if it's on the battlefield.
7. Resolve either the Lunarch Veteran or Luminous Phantom trigger, causing you to gain life
8. Resolve the trigger from the creature with Light of Promise attached, putting a +1/+1 counter on it
9. Repeat from step 3.

This loop turns a single instance of lifegain into a self-sustaining engine of growth and sacrifice. Once your enchanted creature receives its counters from Light of Promise, Animation Module seizes the moment to churn out a Servo artifact creature token for a single mana. You can immediately feed that token to Phyrexian Altar to generate the exact mana needed to pay for Animation Module's trigger, while Lunarch Veteran (or its Luminous Phantom backside) rewards every creature entering and leaving the battlefield with the life needed to restart the cycle.