Cast End the Festivities by paying {R}.
Holding priority, cast Worldfire by paying {5}{R}{R}{R}, exiling all permanents, all cards in all hands and graveyards, and setting each player's life total to one.
Resolve End the Festivities, dealing 1 damage to each opponent.
Each opponent loses the game due to having zero life.

Each opponent loses the game

Exile all cards in all hands and graveyards

Exile all permanents

Near-infinite lifeloss

Worldfire

Wizards of Thay

End the Festivities

Cast Dragon's Approach by paying {1}{R}.
Holding priority, cast Worldfire by paying {5}{R}{R}{R}, 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.

Combos with "Wizards of Thay"