Each opponent loses the gameExile all cards in hands and graveyardsExile all permanentsNear-infinite lifeloss for all playersMass Land Denial
How it works
Cast the instant or sorcery that deals damage or causes lifeloss by paying its mana cost.
Holding priority, cast Worldfire by paying 5, exiling all permanents, all cards in all hands and graveyards, and setting each player's life total to 1.
Resolve the instant or sorcery cast in step 1, causing each opponent to lose at least 1 life or be dealt at least 1 damage.
Each opponent loses the game due to having 0 or less life.