Azuth's Spell Shield

Magic of Faerûn (Mag)Forgotten Realms (3.0)
School
Abjuration
Casting Time
1 standard action
Components
V, S, DF
Range
Close (25 ft. + 5 ft./2 levels)
Target
One creature/caster level within 30 ft. of each other
Duration
1 round/level (see text)
Saving Throw
Will negates (harmless)
Spell Resistance
Yes (harmless)

Each targeted creature gains spell resistance equal to 12 + caster level.
Divide the duration evenly among all the creatures you target.
In order to affect a creature who has spell resistance with a spell, a spellcaster must roll the creature’s spell resistance or higher on 1d20 + caster level.
A creature with spell resistance may voluntarily lower it in order to accept a spell.