Springheart Nantuko + Mutable Explorer + Primal Vigor + Lotus Cobra

Springheart Nantuko

Mutable Explorer

Primal Vigor

Lotus Cobra

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 Lotus Cobra each trigger twice.
6. Resolve the Lotus Cobra triggers, adding 1.
7. Resolve the Springheart Nantuko trigger, causing you to pay 1 to create two token copies of Mutable Explorer.
8. Repeat from step 3.

This brilliant engine feeds on itself by leveraging land-based triggers and token multiplication to grow your board exponentially. Whenever you play a land, Lotus Cobra helps fund Springheart Nantuko's landfall ability, which makes token copies of the changeling Mutable Explorer thanks to Primal Vigor doubling every token created. Because Mutable Explorer is every creature type, its entry triggers the creation of Mutavault land tokens, which in turn feed right back into the Nantuko and the Cobra to keep the loop going indefinitely.