Rattleclaw Mystic, Panoptic Projektor, and Master of the Veil

Prerequisites

• Rattleclaw Mystic on the battlefield
• Panoptic Projektor on the battlefield
• Master of the Veil on the battlefield
• available

Steps

1. Activate Rattleclaw Mystic's morph ability by paying , turning it face-up
2. Ratteclaw Mystic triggers twice, adding
3. Activate Master of the Veil's morph ability by paying , turning it face-up
4. Master of the Veil triggers twice, turning Rattleclaw Mystic and Master of the Veil face-down
5. Repeat

Results

• Infinite blue mana
• Infinite green mana
• Infinite red mana