Spellslinger + spontaneous casting

[DrakeRoberts]

First off, my apologies for the lack of links. I am phone posting and have not found a good way to make that work without losing my posts mid-writing.

The Spellslinger wizard archetype has abilities (arcane gun, mage bullets) that seem to be generally accepted to work with spells from other casting classes, due to the FAQ covering sorcerous bloodlines and the note that the general ruling from that FAQ (per the FAQ) is that a class ability modifying spellcasting affects all of your spells from all classes unless otherwise specified. By that logic, it has been said that a spellslinger 1/sorcerer x could therefore cast sorcerer spells from his gun for the bonuses that provides.

My question is if Mage Bullets is also useful in that way? It lets you 'sacrifice a spell' to enhance your gun. Normal wording on such sacrifices tends to be 'sacrifice a prepared spell' or 'sacrifice a spell slot'. This is not technically either of those (although wizards, of course, prepare spells). So can a spellslinger 1/sorcerer x sacrifice sorcerer spell slots (unused ones, of course) to power his Mage Bullets ability?

I feel like there may have been a similar wording issue with a prestige class somewhere that was determined to work with both, but I could be off on that.

[DrakeRoberts]

Anyone have any ideas?

[Dasrak]

A spontaneous spell slot and prepared spell slot are equivalent concepts, so it should work. With that said I've seen some people on the forums be real sticklers about the distinction between spontaneous and prepared casters, so YMMV on this one. Given that we wouldn't expect spontaneous casting to be addressed explicitly in an archetype about a prepared spellcaster, I'd be much more inclined to take the permissive ruling.

With that said, generally a blaster-style Spellslinger like you're describing wouldn't get very good value out of the Mage Bullets class feature anyways. You're generally better off just spending your spell slot on casting, since your poor attack bonus means you get relatively few attacks per round to capitalize on that damage boost. Builds that go into Eldritch Knight or Eldritch Archer get a lot more value out of the Mage Bullets ability.