Spellcrash, Greater

Abjuration
Level: Cleric */Oracle * 8, Sorcerer */Wizard * 8, Warlock * 8
Components: V, S
Casting Time: 1 Standard Action
Range: medium (100 ft. + 10 ft./level)
Target: one creature
Duration: 1 round/level
Saving Throw: Will negates, see text
Spell Resistance: yes

This spell functions as lesser spellcrash, except it affects 7th-level or lower prepared spells or spell slots.