Kediss, Emberclaw Familiar, Worldfire, Parallax Wave, and Bloodsworn Steward

Prerequisites

• Kediss, Emberclaw Familiar in exile
• Worldfire in hand
• Parallax Wave on the battlefield
• Bloodsworn Steward in exile
• available

Steps

1. Cast Worldfire by paying , exiling all permanents, all cards in all hands and graveyards, and setting each player's life total to one
2. Parallax Wave leaves the battlefield, returning Kediss and Bloodswarn Steward from exile to the battlefield
3. Deal combat damage to an opponent with Kediss
4. The opponent dealt damage loses the game due to having less than zero life
5. Kediss triggers, dealing damage equal to the combat damage dealt to each other opponent
6. Each other opponent loses the game due to having less than zero life

Results

• Each opponent loses the game
• Exile all cards in all hands and graveyards
• Exile all permanents
• Near-infinite lifeloss