Animation Module + Ajani's Welcome + Sunbond + Phyrexian Altar

Animation Module

Ajani's Welcome

Sunbond

Phyrexian Altar

How it works

1. Gain life.
2. The creature with Sunbond 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, Ajani's Welcome triggers, causing you to gain life.
5. The creature with Sunbond attached triggers. Holding priority, activate Phyrexian Altar by sacrificing the Servo, adding 1.
6. Resolve the trigger from the creature with Sunbond attached, putting a +1/+1 counter on it
7. Repeat from step 3.

This loop creates a self-sustaining engine of life and growth by linking lifegain directly to creature generation and mana production. Once you trigger the loop, Sunbond pumps your enchanted creature with +1/+1 counters whenever you gain life, which simultaneously wakes up Animation Module to produce a Servo artifact creature token for a single mana. That new token entering the battlefield causes Ajani's Welcome to trigger and heal you, restarting the Sunbond growth. To fuel Animation Module's cost, you simply feed the newly minted Servo to Phyrexian Altar for the necessary mana, keeping the cycle spinning indefinitely.