Springheart Nantuko + Simic Growth Chamber + Dryad of the Ilysian Grove + Amulet of Vigor

Prerequisites

You are able to play a land this turn

Steps

1. Play Simic Growth Chamber. When it enters, Amulet of Vigor, Simic Growth Chamber and Springheart Nantuko trigger.
2. Resolve the Amulet of Vigor trigger, untapping Simic Growth Chamber.
3. Holding priority, activate Simic Growth Chamber by tapping it, adding {G}{U}.
4. Resolve the Simic Growth Chamber trigger, returning it from the battlefield to your hand.
5. Resolve the Springheart Nantuko trigger, causing you to pay {1}{G} to create a token copy of Dryad of the Ilysian Grove.
6. Because of the additional Dryad of the Ilysian Grove token, you can play an additional land this turn.
7. Repeat.