Springheart Nantuko + Spelunking + Golgari Rot Farm + Oracle of Mul Daya

Springheart Nantuko

Spelunking

Golgari Rot Farm

Oracle of Mul Daya

How it works

1. Play Golgari Rot Farm. When it enters untapped due to Spelunking, Golgari Rot Farm and Springheart Nantuko trigger.
2. Holding priority, activate Golgari Rot Farm by tapping it, adding .
3. Resolve the Golgari Rot Farm trigger, returning it from the battlefield to your hand.
4. Resolve the Springheart Nantuko trigger, causing you to pay 1 to create a token copy of Oracle of Mul Daya.
5. Because of the additional Oracle of Mul Daya token, you can play an additional land this turn.
6. Repeat.

This loop hinges on Spelunking to ensure your Golgari Rot Farm enters the battlefield untapped, circumventing its usual delay so you can tap it immediately for black and green mana before its own bounce trigger resolves. Springheart Nantuko uses each ensuing landfall trigger to invest a portion of that mana into copying your Oracle of Mul Daya, which in turn fuels the chain by letting you continuously play the returned Golgari Rot Farm right off the top of your library.