Guiding Light

Evocation [Light]
Level: Bard 1, cleric 1, sorcerer/wizard 1
Components: V, S
Casting Time: 1 standard action
Range: Long (400 ft. + 40 ft./level)
Targets: Creatures in a 5-ft.-radius burst
Duration: 1 minute/level (D)
Saving Throw: None
Spell Resistance: Yes

Across the murky plain, a beam of radiance shoots down, highlighting your foes.

Bright lights shine at the targets. The lights grant a +2 circumstance bonus on ranged attack rolls against any highlighted target. If a creature gains total cover or total concealment relative to you, or if it leaves the area, the spell ends for that target.

(Spell Compendium, Page 108)