I was torn twixt, "Balanced for all classes" and "Balanced for non-caster and too weak for casters". I voted for "all classes" because I don't think it's
too weak for caster. Yes, it's suboptimal, especially if you split the class levels evenly. A Fighter 2/Sorcerer X can be a nicely effective combination. As can Sorcerer 1/Barbarian X.
So I think the best way to go is to either dabble in magic, or take only a quick detour out of magic.
But then, that's how I feel about multiclassing in general. I feel that your main class should be supported by the synergy only a level or two in other classes can bring; it should make your speciality somehow more effective instead of making the character, "less focused and more versatile". You might well become more versatile as a handy side-effect, but the function of the multiclassing should strongly support the balliwick of the character.
Ranger REG said:
Like a Magic Attack Bonus (or MAB)?
Mongoose's Conan RPG has a Magic Attack Bonus that sets spell save DCs.
The magic attack roll which targets must beat to save vs the spell is not based on spell level because there is no such thing (though I think some spells specify penalties or bonuses to a target's save). Only the scholar has a 1/2 level MA bonus; everyone else has a 1/4. So if a high level thief takes a few levels of scholar, he'll have a better MA bonus than a 1st level scholar.
Now, this won't help that multiclass Thief/Scholar with the number of spells he knows, but it will make sure his spell does get harder to resist as levels go by. Slowly, but hey, he's not a spellslinger.
[digression]
Conan RPG's magic system is fantastic in my opinion. It's a power-point type system, and the total number of points per day is modified by your Wisdom. The difficulty to resist your spells is based on your Magic Attack Bonus and your Charisma. The number of spells you know is modified by your Intelligence. They make up for this M.A.D. by making the spells
viscious.
Magic is very deadly in the Hyborian Age, as it is also hard to find. You either have to find tomes (quests, anyone?), apprentice yourself, or traffic with demons who will teach you.
Seriously great stuff. If you haven't seen it, it's worth the price of the sourcebook to mine ideas from.
[/digression]