Otiluke's Resilient Sphere

School: Evocation [Force]
Caster Level: Sor/Wiz 4
Components: V, S
Range: Close (25 ft. + 5 ft./2 levels)
Effect: Sphere, centered around a creature
Duration: 1 min./level
Saving Throw: Reflex negates
Spell Resistance: Yes

A globe of shimmering force encloses a creature. The sphere contains its subject for the spells duration. The sphere is not subject to damage of any sort except from a rod of cancellation, a rod of negation, a disintegrate spell, or a targeted dispel magic spell. These effects destroy the sphere without harm to the subject. Nothing can pass through the sphere, inside or out, though the subject can breathe normally. The subject may struggle, but the sphere cannot be physically moved either by people outside it or by the struggles of those within.