Worldfire, and Outpost Siege

Prerequisites

• Worldfire in hand
• Outpost Siege on the battlefield
• "Dragons" chosen by Outpost Siege
• The number of creatures you control is equal to or greater than the number of opponents you have
• 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. Outpost Siege triggers for each creature you had leave the battlefield this way
3. Resolve the first Outpost Siege trigger, dealing 1 damage to any opponent
4. The opponent loses the game due to having zero or less life
5. Repeat from step 3 for each remaining opponent

Results

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