Widen Spell

(Magic of Faerun, page 23, DnD 3.0)

[Metamagic]

You can increase the area of your spells.

Benefit

A widened burst, emanation, or spread spell has its radius increased by 50%. Spells that do not have an area of one of these three sorts are not affected by this feat. A widened spell uses up a spell slot three levels higher than the spell's actual level.