Ashaya, Soul of the Wild + Blossoming Tortoise + Spawning Pit + Tezzeret, Betrayer of Flesh + Doc Samson, Super Psychiatrist

Ashaya, Soul of the Wild

Blossoming Tortoise

Spawning Pit

Tezzeret, Betrayer of Flesh

Doc Samson, Super Psychiatrist

How it works

1. Animate Spawning Pit using Tezzeret, Betrayer of Flesh
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 hinges on turning your non-token creatures into lands with Ashaya, Soul of the Wild, while transforming Spawning Pit into an artifact creature via Tezzeret, Betrayer of Flesh so it benefits from cost-reducing synergies. Because Spawning Pit is now an artifact land creature, Blossoming Tortoise helps discount its land-based activated abilities alongside Tezzeret's own ability reduction. Meanwhile, Doc Samson, Super Psychiatrist supercharges the loop by doubling up the charge counters placed onto Spawning Pit every time you sacrifice a creature.