Animation Module + Krark-Clan Ironworks + Light of Promise + Trostani, Selesnya's Voice

Animation Module

Krark-Clan Ironworks

Light of Promise

Trostani, Selesnya's Voice

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, Trostani triggers, causing you to gain life.
5. The creature with Light of Promise attached triggers. Holding priority, activate Krark-Clan Ironworks 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 clever loop spins into motion the moment you gain life, which forces your creature enchanted by Light of Promise to grow larger with a +1/+1 counter. That counter sighting immediately rouses Animation Module to offer a Servo token for the low price of one mana, and the moment that mechanical creature enters the battlefield, Trostani, Selesnya's Voice gently restores your life total to restart the cycle. Before the new +1/+1 counter trigger can even resolve, Krark-Clan Ironworks steps in to sacrifice the freshly minted Servo for two colorless mana—easily funding the Animation Module's fee while generating an endless cascade of artifacts hitting the graveyard.