Vision, Spectral Synthezoid, Multiversal Incursion, and Warden of the Eye

Prerequisites

• Vision, Spectral Synthezoid on the battlefield
• Multiversal Incursion in hand
• Warden of the Eye on the battlefield

Steps

1. Cast Multiversal Incursion for free due to Vision, creating a nonlegendary token copy of each nontoken creature you control
2. When the Warden of the Eye token enters, it triggers, returning Multiversal Incursion from your graveyard to your hand
3. Repeat

Results

• Infinite artifact ETB
• Infinite artifact tokens
• Infinite copies of creatures you control
• Infinite creature ETB
• Infinite creature tokens
• Infinite magecraft triggers
• Infinite storm count