And now for a section related to the religion of Naskha, the Great Sorcerer. First some spells, then the Cerulean One PrC tomorrow!

In particular I'd like feedback on Naskha's Laughter - is it over- or under-powered for its level? Or is it just right?
Rainbow Robes
Abjuration [Chaos]
Level: Clr 7, Sor/Wiz 8
Components: V, S, M/DF
Casting Time: 1 action
Range: Personal
Target: You
Duration: 1 minute/level.
A gift from the whimsical deity of sorcery, Naskha, this spell was placed in the mind of all his high priests and the most powerful sorcerers of Naseria when the first waves of the Dread March flooded over the Sarokean mountains. It garbs you in a shimmering cloak of multicoloured energy that shifts and changes amongst the colours of the rainbow constantly. As well as granting a +3 deflection bonus to AC and a +3 resistance bonus to saving throws, rainbow robes has the following effects, one of which can be used as a free action every round.
Red: You may make a ranged touch attack to strike an opponent with a red beam, inflicting 3d6 damage as it disrupts their blood with energy. Against undead such as vampires that drink the blood of others to sustain themselves, they must in addition make a saving throw or be destroyed.
Orange: You may make a ranged touch attack to strike an opponent with a globe of orange fire, inflicting 4d6 fire damage. It affects incorporeal undead as a Force affect (they do not benefit from the usual 50% chance to ignore the damage), and deals double damage against such creatures.
Yellow: You illuminate an area around you with a radius of 30 ft. with a warm yellow glow, dealing 3d6 damage to all undead within the area and dazing them for a single round unless they make a Will save. All living creatures within the area are healed for 3d6 hit points.
Green: You are healed as if by a cure critical wounds spell (4d8+20) or you may make a ranged touch attack to use this ability on another.
Blue: You may make a ranged touch attack to strike a target with a beam of blue light. If you hit, they are affected as if by a targeted dispel magic spell. Targets with a Lawful alignment are dazed for a single round unless they make a Will save.
Indigo: You pulse with indigo light for a moment, illuminating an area around you with a radius of 30 ft. All necromantic spells active in the area are affected as if by a targeted dispel magic just against those spells. Any creatures within the area that are paralysed are immediately freed from that effect.
Violet: You shimmer with violet energy. All beings with a Lawful alignment that can see you must make a Will save or be blinded permanently.
Whenever you use one of these abilities, it cannot be used again and that colour disappears from the rainbow robes. Once all these abilities have been used, the magical energy turns pure white and the bonuses to AC and saving throws remain until the spell’s duration ends.
Only clerics of Naskha can cast the divine version of this spell.
Material Component: A small piece of multicoloured cloth.
Naskha's Laughter
Enchantment (Compulsion) [Chaos, Mind-Affecting, Sonic]
Level: Clr 3
Components: V
Casting Time: 1 action
Range: Close (25 ft. + 5 ft./2 levels)
Area: Cone
Duration: Instantaneous
Saving Throw: Will Negates
Spell Resistance: Yes
You laugh loudly, letting out a roiling blast of sonic energy which fills the ears of enemies and leaves them dazed and confused. Any hostile creatures within the area of effect must make a successful Will saving throw or be stunned for 1 round.
Only clerics of Naskha have access to this spell.