Rimewind Taskmage, Illusionist's Bracers, and Mana Vault

Prerequisites

• Rimewind Taskmage on the battlefield
• Illusionist's Bracers on the battlefield
• Mana Vault on the battlefield
• Illusionist's Bracers attached to Rimewind Taskmage
• Rimewind Taskmage does not have summoning sickness
• You control at least four snow permanents

Steps

1. Activate Mana Vault by tapping it, adding
2. Activate Rimewind Taskmage by paying and tapping it, targeting itself
3. Illusionist's Bracers triggers, copying Rimewind Taskmage's ability, targeting Mana Vault
4. Resolve both abilities, untapping Rimewind Taskmage and Mana Vault
5. Repeat

Results

• Infinite mana permanents you control can produce
• Infinite untap of permanents you control