As protection from energy, except lasting 1 day/level instead of 10 minutes per level and that the spell only protects against acid and fire damage (and while energy protection remains, the item is also completely waterproof).
As lesser angelic aspect, plus you gain darkvision 60 ft., acid and cold resistance increases to 10, you gain DR 5/evil, you sprout wings granting fly speed 30 ft. (average maneuverability) and your natural weapons or weapons you wield are considered good-aligned for the purpose of overcoming damage reduction.
The target’s bones or exoskeleton shiver and splinter, dealing 1d6 points of damage per caster level (maximum 15d6) to the target, who is also exhausted for 1 minute per caster level from the pain and exertion of the transformation.
You gain a deflection bonus to AC vs. attacks from creatures with a neutral component to their alignment, you may banish such creatures, and you automatically dispel any one enchantment spell cast by such a creature.
Cut yourself and swear an oath of retribution on your own blood. Any attack, save, or check related to the oath grants you a morale bonus to that roll equal to the number of hit points of damage you sacrificed divided by 5.
A blast of hellfire deals 1d6 damage per caster level (maximum 15d6) to the target (half fire damage half unholy damage.) If a creature is killed by this damage it must make a Will save or be damned to Hell.
As angelic aspect but DR increases to 10/evil; you gain immunity to acid, cold, and petrification; resistance to electricity and fire 10; +4 racial bonus on saves against poison; a protective aura, and truespeech as supernatural abilities. Also, your fly speed increases to 60 ft. (good maneuverability).
Eviscerates the target, drawing forth his life essence as well as his internal organs, inflicting 1d6 hit points of damage per caster level (maximum 20d6). If this kills the target, the spell pulls his organs into a set of 4 canopic jars and seals them; creating an Osirion mummy 1d4 rounds later.