Omen Hawker, and Freed from the Real

Prerequisites

• Omen Hawker on the battlefield
• Freed from the Real on the battlefield

Steps

1. Activate Omen Hawker by tapping it, adding that can only be spent to activate abilities
2. Activate Freed from the Real's second ability by paying , untapping Omen Hawker
3. Repeat

Results

• Infinite colorless mana that can only be spent to activate abilities