My character is a 7th level Magus with 18 Int after items, therefore receiving an extra 1st, 2nd, 3rd, and 4th spell, in addition to the base Magus spells, even though he can't cast the 4th yet. If he were to take 4 points of Intelligence drain/damage, would he lose the extra 3rd and 4th spell slots? Or are those retained based on your base casting stat?
[RPG] Does stat drain/damage make you lose bonus spell slots
ability-scorespathfinder-1espells
Best Answer
Ability damage, for the sake of simplifying the rules, do not make you recalculate any of your other abilities that depend on the ability damaged.
While ability drain does, making you lose access to your bonus spell slots, but not your base slots gained from your class.
This is what James Jacobs (Paizo's Creative Director) wrote oficially about this (original post on the rules forum):