Animation Module, Mana Echoes, and Railway Brawler

Prerequisites

• Animation Module on the battlefield
• Mana Echoes on the battlefield
• Railway Brawler on the battlefield
• undefined available

Steps

1. Put a +1/+1 counter on any creature you control
2. Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token
3. When the Servo enters the battlefield, Mana Echoes and Railway Brawler trigger
4. Resolve the Mana Echoes trigger, adding for each Servo you control
5. Resolve the Railway Brawler trigger, putting a +1/+1 counter on the Servo
6. Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token
7. Repeat from step 3

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite creature tokens