Infinite colorless manaInfinite creature tokensInfinite death triggersInfinite creature ETBInfinite lifegainInfinite lifegain triggersInfinite creature LTBInfinite creature sacrifice triggersInfinite +1/+1 counters on creatures you control
How it works
Cause a creature to enter the battlefield under your control.
Soul's Attendant triggers, causing you to gain 1 life.
Archangel of Thune triggers, putting a +1/+1 counter on each creature you control.
Animation Module triggers for each counter placed this way.
Resolve all but one Animation Module trigger, choosing not to pay.
Resolve the last Animation Module trigger, causing you to pay 1 to create a 1/1 Servo artifact creature token.
When the Servo enters the battlefield, Soul's Attendant triggers.
Holding priority, activate Ashnod's Altar by sacrificing the Servo, adding CC.
Resolve the Soul's Attendant trigger, causing you to gain 1 life.
Repeat from step 3.
This elegant loop begins the moment Soul's Attendant rewards any creature's arrival with a life-gain trigger, which Archangel of Thune immediately leverages to blanket your entire board in +1/+1 counters. Those counters awaken Animation Module's first ability, letting you turn a single mana into a fresh Servo artifact creature token. That new token naturally loops back into Soul's Attendant for more life, while Ashnod's Altar provides the exact sacrificial engine needed to harvest the Servo for the colorless mana that fuels the Module's ongoing cost.