Captain America, Team Leader + Animation Module + Krark-Clan Ironworks + Arcane Adaptation

Captain America, Team Leader

Animation Module

Krark-Clan Ironworks

Arcane Adaptation

How it works

1. Put a +1/+1 counter on a creature you control.
2. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
3. When the Servo enters as a Hero due to Arcane Adaptation, Captain America triggers, putting a +1/+1 counter on it and the Servo.
4. Animation Module triggers twice.
5. Holding priority, activate Krark-Clan Ironworks by sacrificing the Servo, adding CC.
6. Resolve the first Animation Module trigger, choosing not to pay.
7. Resolve the second Animation Module trigger, causing you to pay 1 to create a 1/1 Servo artifact creature token.
8. Repeat from step 3.

This clever loop turns the mechanical synergy of the Avengers' leader into a self-sustaining manufacturing line, fueled by the type-changing magic of Arcane Adaptation to make every new creation count as a Hero. Whenever Animation Module places a +1/+1 counter or pays to spawn a token, Captain America, Team Leader immediately triggers off that new arrival to place *more* counters back onto the board. This constant growth triggers Animation Module repeatedly, creating an excess of Servos that you can feed directly into Krark-Clan Ironworks to generate a surplus of colorless mana while keeping the engine running indefinitely.