Magda, Brazen Outlaw, Clock of Omens, and Metallic Mimic

Prerequisites

• Magda, Brazen Outlaw on the battlefield
• Clock of Omens on the battlefield
• Metallic Mimic on the battlefield
• "Dwarf" chosen with Metallic Mimic

Steps

1. Activate Clock of Omens, tapping itself and Metallic Mimic to untap Metallic Mimic
2. Magda triggers, creating a Treasure token
3. Activate Clock of Omens, tapping the Treasure token and Metallic Mimic to untap Metallic Mimic
4. Magda triggers, creating a Treasure token
5. Repeat steps 3-4

Results

• Infinite colored mana at your next untap phase
• Infinite tapped Treasure tokens
• Put any number of artifacts and Dragons from your library onto the battlefield
• Put all Dragon and artifact cards from your library onto the battlefield