Ashaya, Soul of the Wild, Blossoming Tortoise, Spawning Pit, Donatello, Mutant Mechanic, and Kaya, Geist Hunter

Prerequisites

• Ashaya, Soul of the Wild on the battlefield
• Blossoming Tortoise on the battlefield
• Spawning Pit on the battlefield
• Donatello, Mutant Mechanic on the battlefield
• Kaya, Geist Hunter on the battlefield

Steps

1. Animate Spawning Pit using Donatello
2. Activate Kaya's second loyalty ability by removing two loyalty counters from it, causing you to double any tokens you create this turn
3. Activate Spawning Pit's second ability by removing two charge counters from it, creating two creature tokens
4. Activate Spawning Pit's first ability twice by sacrificing the creature tokens, putting two charge counters on it
5. Repeat from step 3

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers