Brion Stoutarm, and Serra Avatar

Prerequisites

• Brion Stoutarm on the battlefield
• Serra Avatar on the battlefield
• undefined available

Steps

1. Activate Brion by paying , tapping it and sacrificing Serra Avatar, dealing damage equal to Serra Avatar's power to target opponent with a life total equal to or less than your life total and causing you to gain that much life
2. The opponent loses the game due to having 0 or less life

Results

• Near-infinite damage to target opponent
• Near-infinite lifegain
• Target opponent loses the game