Actually, i'm going to rant a little aobut copyright law and proper use of the d20 or OGL lisence:
WHen you write something down, it is copyrighted. No ifs ands or buts. That is the law.
However, you can give written permission for someone to use your material in other contexts. There are already a number of legally allowed uses, some under the often mis-understood "fair use" scheme that are typically used to defend copying someone else's work, and some which cover reviews, academic work, etc. Very few of them allow you to make any money off the copyrighted material, but it's possible under things like parody (OF the material, not using copyrighted material to parody something else, which was probably the argument in American Greetings' smackdown of PA over Strawberry Strumpet).
The lisence Wizards of the Coast has provided is one of two. d20 or OGL. There are important differences, basically pertaining to how similar the system is to the original d20, but for the purposes of what you're proposing, there's no need to go into that. The essential problem with using their spell names, legally, is that we are not fulfilling terms of either lisence in many areas: actually using a d20 system being a huge one, and not posting the lisence information being another huge one, and not designating clearly and specifically which material is d20 and which is original being yet another gigantic, monster violation of the lisence.
Now, I believe EUOL's main reason for doing it was just for it to be something esle. The forum classes are not meant to be specifically D&D spoofs. They're meant to be something else entirely. However, even if he did, there would be a lot of work we'd have to do in order to make it legal before we did so. It's easier to come up with creative new ideas than it is to either copy a spell name or come up with a new name for a spell with the same idea.
