Dispelling Screen, Greater

(Spell Compendium, page 67, DnD 3.5)

Abjuration

Level: ; Sorcerer/Wizard 7; , Drow 6
Components: V, S, M
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Effect: Energy wall whose area is up to one 10-ft. square/level, or a sphere or hemisphere with a radius of up to 1 ft./level
Duration: 1 minute/level (D)
Saving Throw: None
Spell Resistance: No

This spell functions like dispelling screen, except that the maximum caster level bonus on the dispel check is +20.