Hobble

Transmutation
Level: Artificer * 1, Bard * 1, Bloodrager * 1, Hunter * 1, Inquisitor * 1, Magus * 1, Ranger * 1, Sorcerer */Wizard * 1
Components: V, S, M (a drop of glue)
Casting Time: 1 Standard Action
Range: close (25 ft. + 5 ft./2 levels)
Target: one creature/level, no two of which can be more than 20 feet apart
Duration: 1 round/level
Saving Throw: Fortitude negates
Spell Resistance: yes
  This spell disrupts the method a target uses for movement. Creatures under the effects of this spell move at half their base speed (rounded down to the nearest 5-foot increment) but can still take 5-foot steps as normal. Incorporeal creatures and creatures flying with perfect maneuverability are immune to the effects of this spell. Each round, a target receives another save to end the effect.