Worldfire, and Finale of Promise

Prerequisites

• Worldfire in the graveyard
• Finale of Promise in hand
• undefined available

Steps

1. Cast Finale of Promise by paying , casting the instant that deals damage or causes lifeloss and Worldfire from your graveyard without paying their mana costs
2. Resolve Worldfire, exiling all permanents, all cards in all hands and graveyards, and setting each player's life total to 1
3. Resolve the instant that deals damage or causes lifeloss, causing each opponent to lose at least 1 life or be dealt at least 1 damage
4. Each opponent loses the game due to having 0 or less life

Results

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