Carrion Feeder + Animation Module + Mana Echoes

Carrion Feeder

Animation Module

Mana Echoes

How it works

1. Activate Carrion Feeder by sacrificing another creature, putting a +1/+1 counter on it.
2. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
3. When the Servo enters the battlefield, Mana Echoes triggers, adding C for each Servo on the battlefield.
4. Repeat.
5. If there is at least one other Servo on the battlefield to start the combo and/or you have an additional 1 available, this combo nets infinite colorless mana.

This clever loop turns the cycle of life and metal into an unstoppable engine, starting when Carrion Feeder consumes a creature to grow larger. That single +1/+1 counter immediately awakens Animation Module, allowing you to pay a single mana and churn out a brand new 1/1 Servo artifact creature token. As that Servo touches the battlefield, Mana Echoes looks out across your board and floods your mana pool with colorless energy based on your growing mechanical army—more than enough to fund the Module's trigger and fuel the sacrifice all over again.