Najal, the Storm Runner + Worldfire + Dragon's Approach
Najal, the Storm Runner
Worldfire
Dragon's Approach
Each opponent loses the gameExile all cards in hands and graveyardsExile all permanentsNear-infinite lifelossMass Land Denial
How it works
Cast Dragon's Approach by paying 2.
Holding priority, cast Worldfire by paying 6, 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.