Olorin
Into the West
Looking at the Annihilator in the new Underdark book (p79-80). For its Disintegration ability, it acts as the disintegrate spell. What caster level would this ability do damage at? i.e. what caster level does this ability act at and is there some general rule I'm not aware of to determine this, or did they just omit that information from the description?