I know that from old modding when wands could be removed from equip, wands increase ALL respective elemental magic spells by 200 distance, including advanced magic. (ex. 1800 range for fireball or thunder if it was fired without wand)
assuming this is still true, if staff does not give a 200 range bonus, it would give a 200 range penalty on adv magic.
does anyone know if staff gives range bonus to spells? (if not, does staff adv magic have exactly 2000 range?)