Springheart Nantuko + Mutable Explorer + Nissa, Resurgent Animist + Kaya, Geist Hunter

Springheart Nantuko

Mutable Explorer

Nissa, Resurgent Animist

Kaya, Geist Hunter

How it works

1. Activate Kaya's second loyalty ability by removing two loyalty counters from it, causing you to double any tokens you create this turn.
2. Play a land.
3. When the land enters, Springheart Nantuko triggers, causing you to pay 1 to create two token copies of Mutable Explorer.
4. When the Mutable Explorer tokens enter, they trigger.
5. Resolve the first Mutable Explorer trigger, creating two Mutavault land tokens that enters tapped.
6. When the Mutavault tokens enter, Springheart Nantuko and Nissa each trigger twice.
7. Resolve the Nissa triggers, 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 4.

This clever loop relies on Kaya, Geist Hunter's replacement effect to supercharge your token generation, turning a single land drop into an exponential explosion. Once Kaya's minus ability doubles your output, playing a land lets Springheart Nantuko copy Mutable Explorer twice rather than just once. Each of those new changelings immediately fetches a Mutavault land token, which in turn feeds Nissa, Resurgent Animist's landfall mana ability to comfortably pay for Springheart Nantuko's continuous cloning fees.