wildstarsreach said:I would rule that if he is an arcane caster, then it's is only arcane spells. If it is divine, then they would only be able to get divine spells. There are many domain spells that a cleric doesn't get in their general spell list.
But there are no real differences between arcane and divine spells other than what list they are on (heck more than a few spells are both). If you rule that this feat allows you to go off list, why the artificial limitation, either you can or you can't go off list. By imposing a clearly artificial limitation, you're aknowledging how problematic your interpreation is; and that should say something.
As for the feat being useless -it's not for sorcerers or even duskblades - they get an extremely limited "spells known" list and this is the only way to expand that. Besides not every feat has to be a "must have."