While digging through and compiling aging material, I happened upon the Greyhawk-specific prestige class veth (link is to the Internet Archive version; the original apparently gone). The class appeared originally in the Living Greyhawk Journal #2 and was republished on the Wizards of the Coast Web site, it seems, warts and all.
Anyway. Regarding its spells, the prestige class's text and table conflict and its two tables conflict with each other. Were adjustments—perhaps in print in some Living Greyhawk material—ever made to this prestige class?