Mm'menon, Uthros Exile, Animation Module, and Crystalline Crawler

Prerequisites

• Mm'menon, Uthros Exile on the battlefield
• Animation Module in hand
• Crystalline Crawler on the battlefield
• available

Steps

1. Cast Animation Module by paying
2. When Animation Module enters, Mm'menon triggers, putting a +1/+1 counter on Crystalline Crawler
3. Animation Module triggers
4. Holding priority, activate Crystalline Crawler by removing a +1/+1 counter from it, adding
5. Resolve the Animation Module trigger, causing you to pay to create a 1/1 Servo artifact creature token
6. When the Servo enters, Mm'menon triggers, putting a +1/+1 counter on Crystalline Crawler
7. Repeat from step 3

Results

• Infinite ETB
• Infinite creature tokens