Ashaya, Soul of the Wild, Stone-Seeder Hierophant, Whitemane Lion, and Karoo

Prerequisites

• Ashaya, Soul of the Wild on the battlefield
• Stone-Seeder Hierophant on the battlefield
• Whitemane Lion in hand
• Karoo on the battlefield

Steps

1. Activate Karoo by tapping it, adding
2. Cast Whitemane Lion by paying
3. Whitemane Lion enters the battlefield as a Forest land due to Ashaya, triggering itself and Stone-Seeder Hierophant
4. Resolve the Whitemane Lion trigger, returning it from the battlefield to your hand
5. Resolve the Stone-Seeder Hierophant trigger, untapping it
6. Activate Stone-Seeder Hierophant by tapping it, untapping Karoo
7. Repeat

Results

• Infinite ETB
• Infinite landfall triggers
• Infinite LTB
• Infinite storm count