Springheart Nantuko + Mutable Explorer + Tireless Provisioner + Exalted Sunborn

Springheart Nantuko

Mutable Explorer

Tireless Provisioner

Exalted Sunborn

How it works

1. Play a land.
2. When the land enters, Springheart Nantuko triggers, causing you to pay 1 to create two token copies of Mutable Explorer.
3. When the Mutable Explorer tokens enter, they trigger.
4. Resolve the first Mutable Explorer trigger, creating two Mutavault land tokens that enters tapped.
5. When the Mutavault tokens enter, Springheart Nantuko and Tireless Provisioner each trigger twice.
6. Resolve the Tireless Provisioner triggers, creating two Treasure tokens.
7. Holding priority, activate the Treasures by tapping and sacrificing them, adding 1.
8. Resolve the Springheart Nantuko trigger, causing you to pay 1 to create two token copies of Mutable Explorer.
9. Repeat from step 3.

This engine is a masterclass in recursive token multiplication, anchored heavily by Exalted Sunborn whose replacement effect doubles every single token you create into a deluge. When you drop a land, Springheart Nantuko leverages that mana to copy Mutable Explorer, which itself enters to spawn Mutavault land tokens and trigger infinite landfall loops. Those entering Mutavaults feed Tireless Provisioner to generate Treasures, supplying the exact green and colorless mana needed to sustain Springheart Nantuko's landfall payment indefinitely.