Ibburim are angelic ghosts. They are angels of the recently dead, not having passed on to the Heavens. An Ibbur can be convinced to help mortals, but as ghosts the Ibbur may not care or want to help. Luckily they can be bargained with. Ibbur can be cajoled to temporarily take possession of a corpse and animate it, or they can be called upon to defend mortals from threats from the spirit world.

Ibbur summoned by a Kabbalist will typically have stats like this:

Ibbur (2 HD Brute) Disembodied Spirit, cannot physically attack or be attacked

AC: 9; HD 2 HP 9 Resistance: 9; Mods: W -1/N+3/S+4 Speed: 30' Morale: +4 Perception +3 Attack: +4 Damage: 1d10; (vs Spirits Only) Spiritual Attack: -1, hit will provoke morale check 1d4 Intelligence Damage. Invisible: cannot be seen in the Mundane World normally While not considered evil or else they wouldn't heed the Kabbalist's summons, they might still be jerks S+3, D+3 C-1, I+4 ,W+3,Ch+3