Erayo, Soratami Ascendant // Erayo's Essence, and Ethersworn Canonist

Prerequisites

• Erayo, Soratami Ascendant // Erayo's Essence on the battlefield
• Ethersworn Canonist on the battlefield
• Erayo, Soratami Ascendant flipped

Steps

1. Erayo counters the first spell cast, and Ethersworn Canonist only lets opponent cast one non-artifact spell a turn

Results

• Opponents can only cast one non-artifact spell a turn if they first cast an artifact