Prismatic Spray Spell
D&D Description of the Prismatic Spray Spell : This spell causes seven shimmering, intertwined, multicolored beams of light to spray from your hand. Each beam has a different power. Creatures in the area of the spell with 8 HD or less are automatically blinded for 2d4 rounds. Every creature in the area is randomly struck by one or more beams, which have additional effects.
Deeper info on this Dungeons & Dragons Prismatic Spray Spell