Worldfire + Oblivion Ring + Cauldron Familiar Combo

Oblivion Ring on the battlefield.

Cauldron Familiar in exile (Cauldron Familiar exiled by Oblivion Ring in exile).

Worldfire in hand.

available

Cast Worldfire, exiling all permanents, all cards in all hands and graveyards, and setting each player's life total to one.

Oblivion Ring triggers, returning Cauldron Familiar from exile to the battlefield.

Cauldron Familiar enters the battlefield, losing each opponent 1 life and you to gain 1 life.

Each opponent loses the game

Exile all cards in hands and graveyards

Exile all permanents

Significant lifeloss

Mass Land Denial