Animation Module + Ashnod's Altar + Soul Warden + The Destined White Mage
Animation Module
Ashnod's Altar
Soul Warden
The Destined White Mage
Infinite +1/+1 counters on creatures you controlInfinite creature ETBInfinite creature LTBInfinite colorless manaInfinite death triggersInfinite lifegainInfinite lifegain triggersInfinite creature sacrifice triggers
How it works
Gain life.
The Destined White Mage triggers, putting a +1/+1 counter on a creature you control.
Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
When the Servo enters, Soul Warden triggers, causing you to gain life.
The Destined White Mage triggers. Holding priority, activate Ashnod's Altar by sacrificing the Servo, adding CC.
Resolve the The Destined White Mage trigger, putting a +1/+1 counter on a creature you control
Repeat from step 3.
This loop spins into motion the moment you gain life, waking up The Destined White Mage to place a +1/+1 counter on your chosen creature. That counter immediately tickles Animation Module's triggered ability, allowing you to pay a single mana to birth a fresh Servo artifact creature token. As that Servo arrives, Soul Warden catches the entry and hands you back a sliver of life, which feeds right back into The Destined White Mage to keep the cycle going. Meanwhile, Ashnod's Altar stands ready to harvest those newly minted Servos for a clean two colorless mana, leaving you with more than enough fuel to pay the Animation Module's fee while generating an endless storm of life, mana, and counters.