Szarel, Genesis Shepherd, Evolution Witness, and Jeweled Lotus

Prerequisites

• Szarel, Genesis Shepherd on the battlefield
• Evolution Witness on the battlefield
• Jeweled Lotus on the battlefield

Steps

1. Activate Jeweled Lotus by tapping and sacrificing it
2. Szarel triggers, putting a number of +1/+1 counters equal to its power on Evolution Witness
3. Evolution Witness triggers, returning Jeweled Lotus from your graveyard to your hand
4. Resolve the Jeweled Lotus ability
5. Cast Jeweled Lotus by paying
6. Repeat

Results

• Infinite colored mana that can only be spent to cast your commander
• Infinite storm count