Zirda, the Dawnwaker, Iceberg, and Doubling Season

Prerequisites

• Zirda, the Dawnwaker on the battlefield
• Iceberg on the battlefield
• Doubling Season on the battlefield
• available

Steps

1. Activate Iceberg's first ability by paying , putting two ice counters on it
2. Activate Iceberg's second ability by removing an ice counter from it, adding
3. Repeat

Results

• Infinite colorless mana
• Infinite ice counters on Iceberg