Ashaya, Soul of the Wild + Blossoming Tortoise + Spawning Pit + Tezzeret, Betrayer of Flesh + Bard, King of Dale

Ashaya, Soul of the Wild

Blossoming Tortoise

Spawning Pit

Tezzeret, Betrayer of Flesh

Bard, King of Dale

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, creating two creature tokens.
3. Activate Spawning Pit's first ability twice by sacrificing the creature tokens, putting two charge counters on it.
4. Repeat from step 2.

This intricate engine turns your graveyard and artifacts into a self-sustaining sacrifice loop, anchored by Ashaya, Soul of the Wild transforming your nontoken creatures into lands so they benefit from Blossoming Tortoise lowering land activation costs. Meanwhile, Tezzeret, Betrayer of Flesh animates Spawning Pit into an artifact creature, allowing its token creation ability to be activated for free with the help of Blossoming Tortoise's cost reduction. Bard, King of Dale doubles the resulting creature tokens, generating a surplus of fodder that you can freely feed back into Spawning Pit to fuel infinite sacrifices, enters-the-battlefield triggers, and death triggers.