In many movies and tv shows, they have (magic users) know magic as natural ability's, but then they get invited/drafted into schools were they learn formal training.
I was wondering what all a sorcerer would have to loose to be able to gain one bonus spell per spell level. ((+1 first level bonus spell when you learn 1st level spells, +1 second level bonus spell when you learn second level spells, +1 thried level bonus spell when you learn 3rd level spells, etc) ??
Bonus spell slot can only be used for learning wizard spell, from a spell book. The sorcerer has to have sufficient Intelligence to learn the wizard spell. Intelligence does not give bonus spells. The bonus spell slot is used just like a normal wizard spell slot and has to be memorized ahead of time.
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I'm not sure how balanced this feat would be, but maybe this would get the point across:
Trained Hedge Wizard (General)
Prerequisites: Int 11, Spontaneous Arcane Casting, Skill focus (Spellcraft) or Skill Focus (Knowledge Arcana)
You may use one of your spell slots to cast a spell out of a spellbook that was made by another caster. You must still made any Spellcraft checks necessary to understand the spellbook, and a Spellcraft check as if you were attempting to prepare out of an enemy's spellbook. If you fail this Spellcraft check, you must still take the time to cast the spell, and you lose the spell slot. A spell cast this way is now has a 1 round casting time if it was less than that. Otherwise, the casting time is doubled. This spell cannot be modified by metamagic feats. To cast a spell in this way, your Intelligence must be equal to 10+spell level.
Basically, you've learned how to channel your casting out of a spellbook, but not how to make your own. It takes more time, and you need to have the spellbook in hand to even try it. It lets sorcerers have access to utility spells, and not much else due to the longer casting time. Note that it's one round casting, so no spell takes effect until the beginning of the next round.
I am almost thinking that using some of the 3.5 rules for retraining makes more sense than anything.
Character starts as a sorcerer, they gain a few levels. At some point, the character starts gaining wizard levels. Every time they gain a wizard level, let them swap a sorcerer level for a wizard level if they want.
Generally a sorcerer isn't going to have a high INT score. If you want a decent DEX, CON, and of course CHA you're not going to have any points left to spend on INT. You might find a sorcerer in a high point buy game with a 12 INT and thus able to cast level 2 wizards spells but I doubt you'd see much beyond that.
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they have (magic users) know magic as natural ability's, but then they get invited/drafted into schools were they learn formal training.
(...)
I have looked at trying a home-brewed versions of Mystic Theurge made for Sponteneous/Studied (fully Arcane or Divine so either Wizard/Sorcerer or Cleric/Oracle) rather than Divine/Arcane.
I felt it could cover more of the characterized "magic-users" in stories. But I'm uncertain of the balance/un-balance it would create. My first gut-feeling is that the requirement could be "cast studied and sponteneous 2nd level spells" and the "spell-level acces" backing-up could be enought to balance it if you also stack all levels as caster level (not acces).
Generally a sorcerer isn't going to have a high INT score. If you want a decent DEX, CON, and of course CHA you're not going to have any points left to spend on INT. You might find a sorcerer in a high point buy game with a 12 INT and thus able to cast level 2 wizards spells but I doubt you'd see much beyond that.
True. Which is fine. The idea is not give the Sorcerer access to all spell levels, but just to let them gain access to the lower levels throw spell book, and the ability to use the higher slots for meta-magic wizard spells.
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Also, i like Kamia idea about casting spells directly from a spell book also. That really does have more of the Old, Old, movie feel to it.
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Maybe what i am looking for is (Use magic Device) + Spell Book + Normal spell level spell slot used in process; with a minum Full Round Action casting time or longer based on spell.......... Ya that would work, and be like the old movies...Dark Knight, Dungeon Master, Army of the Dead, Conan, etc
So what would a Sorcerer need to give up to gain this last option. ??
If you're going to have them using UMD to cast directly from a book then I would say they don't have to give up anything. They have UMD as a skill anyway, all you need to do is figure out how to do DC.