Concordant Crossroads, Sanctum Weaver, Shimmering Wings, and Vesuvan Duplimancy

Prerequisites

• Concordant Crossroads on the battlefield
• Sanctum Weaver on the battlefield
• Shimmering Wings in hand
• Vesuvan Duplimancy on the battlefield

Steps

1. Activate Sanctum Weaver by tapping it, adding at least
2. Cast Shimmering Wings by paying , targeting Sanctum Weaver
3. Vesuvan Duplimancy triggers, creating a token copy of Sanctum Weaver
4. Activate the Sanctum Weaver token by tapping it, adding at least
5. Activate Shimmering Wings by paying , returning it from the battlefield to your hand
6. Repeat from step 2
7. Once you have infinite mana, you may instead target any other creature you control to get infinite nonlegendary copies of that creature

Results

• Infinite colored mana
• Infinite creature tokens with haste
• Infinite ETB
• Infinite nonlegendary copies of creatures you control
• Infinite storm count