I'm unfamiliar with Rainbow Servant outside of its entry on dndtools. When, and more importantly HOW, did Milo take it, and what does 'text trumps table' mean in this case? (I'm sure you've answered this question before, so feel free to reply privately.)

I probably should have explained it better back in Confirmed Critical when he took the class, but as I explained elsewhere, my writing schedule is pretty rapid-fire and sometimes things slip.

So, Rainbow Servant is a Prestige Class from Complete Divine, and it’s the kind of class you can really only justify taking if you’re a munchkin and your DM is kind of dim.

It’s nothing particularly shiny, unlike, say, Incantatrix or some of the other PrC’s. But it has really light requirements (nonevil and nonchaotic, 4 ranks in Knowledge Arcana, capability to cast 3rd level spells? Seriously? Every Arcane Spellcaster meets those, barring alignment restrictions). There’s also a requirement that you’ve found some hidden jungle temples, but when you can rewrite your own backstory, that’s no problem at all.

You get a few minor goodies, like at-will Detect Evil, access to Good and Air domains, and the ability to fly for a few minutes a day. The main thing is that at level 10, you gain the entire Cleric spell list, but cast as Arcane spells, so you’re not beholden to any deity or external power.

The catch is that, according to the table, you lose 4 levels of spellcasting as a result. This prevents you from getting 9th level spells by level 20, so is basically the nail in the coffin of the class.

However, the actual text of the class says the standard “When a new rainbow servant level is gained, the character gains new spells per day as if she had also gained a level in whatever spellcasting class, etc. etc.” It doesn’t mention that you lose casting levels at 1st, 4th, 7th, and 10th levels. The rule in Dungeons and Dragons is that if there is a conflict in a book, specific trumps general, and the body text always trumps the description in the table.

Now it’s pretty obvious what happened: the text has a minor oversight, and to balance the incredibly powerful access to all cleric spells, you lose some wizard powers. But that’s what the designers intended, and for a true Munchkin, as Milo is, intent has nothing to do with it.

As a result, he has a Prestige Class that isn’t the most powerful one, but it does have the easiest requirements, and it does nothing but good. He loses a few wizard bonus feats and Mordy stops gaining extra powers, but that’s a small price to pay for the ability to, one day, cast virtually every spell in the entire game.