Illusionist's Bracers, Karn, Silver Golem, Magewright's Stone, and Palladium Myr

Prerequisites

• Illusionist's Bracers on the battlefield
• Karn, Silver Golem on the battlefield
• Magewright's Stone on the battlefield
• Palladium Myr on the battlefield
• Magewright's Stone and Palladium Myr do not have summoning sickness
• available

Steps

1. Activate Palladium Myr by tapping it, adding
2. Activate Karn by paying , causing Magewright's Stone to become an artifact creature until end of turn
3. Activate Illusionist's Bracers' equip ability by paying , attaching it to Magewright's Stone
4. Activate Magewright's Stone by paying and tapping it, targeting itself
5. Illusionist's Bracers triggers, copying Magewright's Stone abillity, targeting Palladium Myr
6. Resolve both Magewright's Stone abilities, untapping Magewright's Stone and Palladium Myr
7. Activate Palladium Myr by tapping it, adding
8. Repeat from step 4

Results

• Infinite colorless mana