Bigby's Tripping Hand(Player's Handbook II)
Level: Duskblade 1, Sorcerer 1, Wizard 1,
Components: V, S, M,
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: One creature
Saving Throw: Reflex negates
Spell Resistance: Yes
A large glowing hand, the size of a human torso, appears in front of the creature and sweeps at its legs. The large hand sweeps at the target creature's legs in a tripping maneuver (PH 158). This trip attempt does not provoke attacks of opportunity. Its attack bonus equals your caster level + your key ability modifier + 2 for the hand's Strength score (14). The hand has a bonus of +1 on the trip attempt for every three caster levels, to a maximum of +5 at 15th level.
Material Components: Three glass beads.