Pir, Imaginative Rascal, Gemstone Array, and Power Artifact

Prerequisites

• Pir, Imaginative Rascal on the battlefield
• Gemstone Array on the battlefield
• Power Artifact on the battlefield
• undefined available

Steps

1. Activate Gemstone Array's first ability by paying , putting two charge counters on it
2. Activate Gemstone Array's second ability by removing a charge counter from it, adding
3. Repeat

Results

• Infinite charge counters on Gemstone Array
• Infinite colored mana