Rosie Cotton of South Lane, Animation Module, and Ashnod's Altar

Prerequisites

• Rosie Cotton of South Lane on the battlefield
• Animation Module on the battlefield
• Ashnod's Altar on the battlefield
• You have a way to put a +1/+1 counter on a creature you control
• You control at least one additional creature
• available

Steps

1. Put a +1/+1 counter on a creature you control
2. Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token
3. Rosie triggers, targeting any creature except the Servo
4. Holding priority, activate Ashnod's Altar by sacrificing the Servo, adding
5. Resolve the Rosie ability, putting a +1/+1 counter on the targeted creature
6. Repeat from step 2

Results

• Infinite +1/+1 counters on all creatures you control except Rosie Cotton
• Infinite colorless mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers