Requires

Worldfire must be in hand. Electrostatic Field must be on the battlefield. Fork must be in hand. Mana needed:

Steps

1. Cast Worldfire.
2. Electrostatic Field triggers.
3. Holding priority, cast Fork targeting Worldfire.
4. Resolve the copy of Worldfire, exiling all permanents and cards from players' hands and setting all player's life totals to one.
5. Resolve the Electrostatic Field trigger, dealing 1 damage to each opponent.

Results