Ashaya, Soul of the Wild + Blossoming Tortoise + Spawning Pit + Vorinclex, Monstrous Raider + Karn, Silver Golem

Ashaya, Soul of the Wild

Blossoming Tortoise

Spawning Pit

Vorinclex, Monstrous Raider

Karn, Silver Golem

How it works

1. Animate Spawning Pit using Karn
2. Activate Spawning Pit's second ability by removing two charge counters from it due to Blossoming Tortoise, creating a 2/2 Spawn artifact creature token.
3. Activate Spawning Pit's first ability by sacrificing the Spawn, putting two charge counters on it.
4. Repeat from step 2.

This intricate loop turns an otherwise humble artifact into an infinite engine by weaving together type-changing magic and counter-doubling power. Karn, Silver Golem first animates Spawning Pit into an artifact creature, allowing it to benefit from Ashaya, Soul of the Wild turning all your nontoken creatures into Forest lands and Blossoming Tortoise making those land abilities cheaper and pumping land creatures. Because Spawning Pit is now a land creature, Blossoming Tortoise's cost reduction discounts its ability down to just `{1}`. Meanwhile, Vorinclex, Monstrous Raider doubles the charge counters placed on Spawning Pit whenever you sacrifice a creature to it, easily fueling the tokens needed to keep the cycle going forever.