Illusionist's Bracers, and Aphetto Alchemist

Prerequisites

• Illusionist's Bracers on the battlefield
• Aphetto Alchemist on the battlefield
• Illusionist's Bracers attached to Aphetto Alchemist
• Aphetto Alchemist does not have summoning sickness

Steps

1. Activate Aphetto Alchemist by tapping it, targeting itself
2. Illusionist's Bracers triggers, copying Aphetto Alchemist's ability targeting any other artifact or creature
3. Resolve both Aphetto Alchemist abilities, untapping it and the second target
4. Repeat

Results

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