Now, as we all know, the Warmage is a poor excuse for a sub-par class.
That being said, we all also know that the class gains a whole new dimension of usefulness when rainbow servant is added.
(assuming RS is counted as a 10/10 casting class, and not a 6/10 one)
however, Looking into the rainbow servant pre-reqs, the only ones that require mentioning are "4 ranks knowledge(arcana)" and "able to cast third level arcane spells"...
so, shouldn't we be able to qualify as a first level human(or strongheart halfing) Warmage with two flaws, taking the feats of earth sense, heighten spell, earth spell and versatile caster? this gives us a progression of, so far, warmage1/rainbow servant10 with many possibilities. most likely, the optimal progression involves sacred exorcist+contemplative, and retraining our early entry feats to extra turnings.... but how can we optimize this?
can we make this better than a cleric20? or a wiz20? or hell, even sorceror20?