Spells and magic items become so powerful at 15-20th level that the notion that they're "sub-epic" seems fairly laughable. I mean, c'mon--a wish spell isn't epic? Epic-level warriors and rogues seem like they'd be able to develop some pretty interesting capabilities (I can envision characters like Xena and Hercules being epic-level), but the ELH makes ordinary physical attacks seem almost passe' in the face of all the disintegrates, harms, forcecages, and whatnot flying around as commonly as, say, magic missiles do at 10th level. And at least half the skills become nigh-worthless--after all, at hgiher levels most skills are displaced by a spell that achieves a superior result.