Sword of the Meek, Animation Module, Ashnod's Altar, and Phantom Train

Prerequisites

• Sword of the Meek on the battlefield
• Animation Module on the battlefield
• Ashnod's Altar on the battlefield
• Phantom Train on the battlefield
• available

Steps

1. Activate Phantom Train by sacrificing Sword of the Meek, putting a +1/+1 counter on it
2. Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token
3. When the Servo enters, Sword of the Meek triggers, returning itself from your graveyard to the battlefield attached to the Servo
4. Activate Ashnod's Altar by sacrificing the Servo, adding
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite +1/+1 counters on a creature