Springheart Nantuko + Mutable Explorer + Tireless Provisioner + Archelos, Lagoon Mystic

Springheart Nantuko

Mutable Explorer

Tireless Provisioner

Archelos, Lagoon Mystic

How it works

1. Play a land.
2. When the land enters, Springheart Nantuko triggers, causing you to pay 1 to create a token copy of Mutable Explorer.
3. When the Mutable Explorer token enters, it triggers, creating a Mutavault land token that enters untapped due to Archelos.
4. When the Mutavault token enters, Springheart Nantuko and Tireless Provisioner trigger.
5. Holding priority, activate the Mutavault token by tapping it, adding C.
6. Resolve the Tireless Provisioner trigger, creating a Treasure token.
7. Holding priority, activate the Treasure by tapping and sacrificing it, adding .
8. Resolve the Springheart Nantuko trigger, causing you to pay 1 to create a token copy of Mutable Explorer.
9. Repeat from step 3.

This clever loop turns a single land drop into an engine of endless replication by aligning landfall triggers with recursive creature generation. Archelos, Lagoon Mystic sets the stage by ensuring all your incoming land tokens enter untapped, allowing the Mutavault token created by Mutable Explorer to immediately tap for colorless mana. Meanwhile, Tireless Provisioner converts every land entry into a Treasure token, which you sacrifice to generate the exact green mana needed to sustain Springheart Nantuko's landfall cost. With Springheart Nantuko repeatedly copying Mutable Explorer, the entire sequence feeds back into itself, generating an unstoppable cascade of creature tokens and landfall triggers.