Expert Long Rester
It's been years since I've seen that. I forgot how much I liked those spell descriptions right there in the statblock.I just Googled and found this document which presumably is the one that all the fuss is about.
The copyright claim appears in a footer, together with a "last modified" time stamp. I assume the copyright claim is being made in respect of the copyrightable portions of the work as a whole rather than the stat blocks. For instance, it contains the following non-stat block text (which somewhat ironically I reproduce here for the purposes of review/commentary):
I made changes to several stat blocks in order to reconcile them with the table on page 274 of the Dungeon Master’s Guide, Monster Statistics by Challenge Rating. In short, monsters over CR 5 are typically underpowered with respect to how much damage their Actions do. I suspect that the reason for this is related to the fact that the Monster Manual and Dungeon Master’s Guide were released separately. While that time difference is relatively short, I suspect the two were written independently and thus aren’t in sync. I also made a few changes because I found the monsters boring.In case you want to revert these stat blocks to their original numbers and powers, here are the original stats as they appeared in the Monster Manual. Follow these instructions, and everything will be the same.
He also has spell descriptions which clearly are different from the WotC ones - that's what makes his stat blocks "one-stop". I haven't read his blog about spell blocks yet (is it up?) and so don't know whether or not he believes that he can enjoy copyright in respect of those, or at least thinks there is a chance that he may do so.