Rosie Cotton of South Lane, Animation Module, and Mana Echoes

Prerequisites

• Rosie Cotton of South Lane on the battlefield
• Animation Module on the battlefield
• Mana Echoes on the battlefield
• You have a way to put a +1/+1 counter on a creature you control
• 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 and Mana Echoes triggers
4. Resolve the Mana Echoes trigger, adding for each Servo you control
5. Resolve the Rosie ability, putting a +1/+1 counter on any creature you control
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