Springheart Nantuko + Mutable Explorer + Lotus Cobra + Archelos, Lagoon Mystic

Springheart Nantuko

Mutable Explorer

Lotus Cobra

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 Lotus Cobra trigger.
5. Holding priority, activate the Mutavault token by tapping it, adding C.
6. Resolve the Lotus Cobra trigger, adding .
7. Resolve the Springheart Nantuko trigger, causing you to pay 1 to create a token copy of Mutable Explorer.
8. Repeat from step 3.

This loop is a masterclass in recursive recycling, turning a simple land drop into an engine of endless multiplication. Archelos, Lagoon Mystic sets the stage by making sure your newly generated tokens enter the battlefield untapped, allowing the Mutavault token created by Mutable Explorer to immediately be tapped for colorless mana. That mana feeds right into Lotus Cobra's landfall trigger, which provides the green mana needed to pay for Springheart Nantuko's landfall ability. Because Springheart Nantuko is busy copying Mutable Explorer over and over, every iteration feeds back into itself to churn out an endless swarm of creatures, landfall triggers, and lands.