Reaper King, Wingrattle Scarecrow, and Master Biomancer

Prerequisites

• Reaper King on the battlefield
• Wingrattle Scarecrow in hand
• Master Biomancer on the battlefield
• available

Steps

1. Cast Wingrattle Scarecrow by paying
2. Wingrattle Scarecrow enters the battlefield with at least two +1/+1 counters on it due to Master Biomancer
3. Reaper King triggers, destroying Wingrattle Scarecrow
4. Wingrattle Scarecrow dies, triggering its persist ability, returning it to the battlefield with at least one +1/+1 counter due to Master Biomancer
5. Repeat from step 3

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB