Bess, Soul Nourisher, Animation Module, and Ashnod's Altar

Prerequisites

• Bess, Soul Nourisher on the battlefield
• Animation Module on the battlefield
• Ashnod's Altar on the battlefield
• Bess has at least one +1/+1 counter on it
• available

Steps

1. Activate Animation Module by paying and tapping it, putting a +1/+1 counter on Bess
2. Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token
3. The Servo enters the battlefield, triggering Bess
4. Holding priority, activate Ashnod's Altar by sacrificing the Servo, adding
5. Resolve the Bess trigger, putting a +1/+1 counter on it
6. Repeat from step 2

Results

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