Concordant Crossroads + Sanctum Weaver + Vesuvan Duplimancy + Whip Silk

GU identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Sanctum Weaver by tapping it, adding at least {G}{G}{G}.
  2. Cast Whip Silk by paying {G}, 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 {G}{G}{G}{G}.
  5. Activate Whip Silk by paying {G}, 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.

What the combo produces