Scourge of the Skyclaves, and Archfiend of Despair

Prerequisites

• Scourge of the Skyclaves in hand
• Archfiend of Despair on the battlefield
• available

Steps

1. Cast Scourge of the Skyclaves kicked for
2. When it enters the battlefield, each player loses half of their life, rounded up
3. At the beginning of the end step Archfiend of Despair triggers, causing each opponent to lose the other half of their life

Results

• Infinite lifeloss