Springheart Nantuko + Mutable Explorer + Spelunking + Nissa, Resurgent Animist

Springheart Nantuko

Mutable Explorer

Spelunking

Nissa, Resurgent Animist

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 Spelunking.
4. When the Mutavault token enters, Springheart Nantuko and Nissa trigger.
5. Holding priority, activate the Mutavault token by tapping it, adding C.
6. Resolve the Nissa 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 elegant engine spins into motion thanks to Spelunking, whose static ability ensures that all your incoming lands enter the battlefield completely untapped. When you play a land, Springheart Nantuko leverages that landfall to copy Mutable Explorer, which in turn drops a Mutavault token that immediately readies the loop. Nissa, Resurgent Animist watches the chaos unfold, providing a steady stream of colored mana and card advantage from your library every time the lands pile up.