Sword of the Meek + Animation Module + Krark-Clan Ironworks + Phantom Train

Sword of the Meek

Animation Module

Krark-Clan Ironworks

Phantom Train

How it works

1. Activate Krark-Clan Ironworks by sacrificing Sword of the Meek, adding CC.
2. Activate Phantom Train by sacrificing another creature, 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, Sword of the Meek triggers, returning itself from your graveyard to the battlefield attached to the Servo.
5. Repeat.

This loop is a masterclass in recycling, fueled by Krark-Clan Ironworks to convert your artifacts into a steady stream of colorless mana. When you sacrifice Sword of the Meek to the Ironworks, it hits the graveyard just waiting for a 1/1 creature to bring it back. Phantom Train provides the outlet to sacrifice a spare artifact or creature, and its activated ability places a +1/+1 counter on itself. That counter placement is the ignition spark for Animation Module, which lets you pay a single generic mana to churn out a 1/1 Servo artifact creature token. The moment that Servo enters the battlefield, it triggers Sword of the Meek to return from the graveyard and snap right onto the token, leaving you ready to feed the Ironworks all over again with mana to spare.