Sunstrike Legionnaire, Ashaya, Soul of the Wild, and Spawning Grounds

Prerequisites

• Sunstrike Legionnaire on the battlefield
• Ashaya, Soul of the Wild on the battlefield
• Spawning Grounds on the battlefield

Steps

1. Activate Sunstrike Legionnaire by tapping it, creating a 5/5 Beast creature token
2. When the Beast enters the battlefield, Sunstrike Legionnaire triggers, untapping it
3. Repeat

Results

• Infinite creature tokens
• Infinite ETB