Forcecage

Make a spell card:
NameForcecage
SchoolEvocation [Force]
LevelCraft 8, Force 7, Sor/Wiz 7
ComponentsV, S, M
Casting Time1 standard action
Recharge TimeGeneral
RangeClose (25 ft. + 5 ft./2 levels)
AreaBarred cage (20-ft. cube) or windowless cell (10-ft. cube)
Duration2 hours/level (D)
Saving ThrowNone
Spell ResistanceNo