Cassisian Angel

Perfect Memory. Though they are not particularly intelligent, cassisians have perfect memories and remember everything they see or hear. They can faultlessly recite conversations they heard hundreds of years before. They also have the power to erase portions of their own memories, which they do (usually under orders from superior angels) to protect sensitive information.

Spell-like Abilities. The angel can cast a number of spells as limited-use abilities.
Detect Evil and Good (At will, 1st level)
Aid (1x/day, 2nd level)
Daylight (1x/day, 3rd level)
Commune (1x/week, 5th level)

Lesser Protective Aura. A cassisian has a lesser form of the protective aura possessed by archangels.  They have a +1 bonus to AC against evil foes, and a +1 bonus to saves against effects and spells from evil foes, as well as from necromancy spells.  This aura extends to a radius of 5 feet, but can only benefit one additional creature other than the cassisian at a time.  If the angel takes any damage or is affected by a hostile effect/spell, the aura fades away.  The angel can reactivate its protective aura by spending 1 minute concentrating upon the task.

Breath Weapon [Recharge 5-6]. The angel breathes in a 15 foot line, choosing either cold damage or fire damage and dealing 3 (1d6) damage.  Those in the line make a Dexterity save DC 10 to halve the damage.

Slam. Melee Attack: -1 to hit, reach 5 ft., one target. Hit: 1 bludgeoning damage.