Shadow Binding(Spell Compendium, p. 182)
Level: Sorcerer 3, Wizard 3,
Components: V, S, M,
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Area: 10-ft.-radius burst
Duration: 1 round/level
Saving Throw: Will negates
Spell Resistance: Yes
As the links of chain in your hand dissipate to feed the arcane energies of your spell, a multitude of ribbonlike shadows instantaneously explodes outward from an indicated point nearby.
Creatures in the area that fail a Will save are entangled and unable to move. Breaking free of a shadow binding requires a DC 20 Strength check or a DC 20 Escape Artist check, taken as a full-round action.
Material Component: A few links of iron chain.