I am not sure on the level of a spell like this.
School: Transmutation (Polymorph)
Level: Cleric X+1, Druid X, Wiz/Sorc X
Casting time: 1 minute
Duration: 1hr/level
Range: Touch
Target: Creature touched (must be of the correct alignment)
You draw the power of an aligned plane (or a creature on it) into the target. When casting this spell, you must choose what alignment to connect with. The target must have that as part of their alignment or else the spell fails. You choose any one the following:
Lawful: The target gains the "Resolute" template. When determining what abilities they gain, treat their HD and CR as 1/2 your caster level,
Chaotic: The target gains the "Entropic" template. When determining what abilities they gain, treat their HD and CR as 1/2 your caster level,
Good: The target gains the "Celestial" template. When determining what abilities they gain, treat their HD and CR as 1/2 your caster level,
Evil: The target gains the "Fiendish" template. When determining what abilities they gain, treat their HD and CR as 1/2 your caster level,