Battlemage's Bracers, Viridian Joiner, and Aphetto Alchemist

Prerequisites

• Battlemage's Bracers on the battlefield
• Viridian Joiner on the battlefield
• Aphetto Alchemist on the battlefield

Steps

1. Activate Viridian Joiner by tapping it, adding at least
2. Activate Aphetto Alchemist by tapping it, targeting Viridian Joiner
3. Battlemage's Bracers triggers, causing you to pay to copy Aphetto Alchemist's ability, targeting Aphetto Alchemist
4. Resolve both Aphetto Alchemist abilities, untapping it and Viridian Joiner
5. Repeat

Results

• Infinite mana creatures you control can produce
• Infinite untap of creatures you control
• Infinite green mana