Here's a recent hive mother beholder villain I drafted, in case anyone wants to use it. [url=http://magerune.blogspot.com/2014/01/dreadglare-spellsire.html]Dreadglare the Spellsire[/url].

It could always serve as a basis for Grimhold's stats, given how easily he was able to dispel Xukhezur's magic.