Worldfire by paying ({6} magic symbol) ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) , exiling all permanents, all cards in all hands and graveyards, and setting each player's life total to one.
Resolve
Dragon's Approach, dealing 3 damage to each opponent.
Each opponent loses the game due to having less than zero life.
Results
Each opponent loses the game.
Exile all cards in hands and graveyards.
Exile all permanents.
Near-infinite lifeloss.
Mass Land Denial.
Metadata
In 7 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Ruthless (Bracket 4+).