TPK live up to their name with their Infamous Adversaries. These villains are always a bit overpowered for the CR, but that's what makes them Infamous, in my opinion. Raxath was no different: we dropped him into our campaign as the weekly Big Bad. 3 sessions later and we're STILL trying to kill him. 1st encounter caused our party to lose 3 stalwart souls (Talisman of Ultimate Evil be damned!) . 2nd encounter was a draw, with Raxath escaping into the valley. His meddling and intellect actually makes him into a powerful campaign threat rather than a conniving one-off villain.
The great/dreadful thing about Raxath is that he's open to working with other forces to his own purposes. From a game-perspective, he's a great foe to weave into whatever story arc your campaign is rolling out.
All in all, this is a contender for one of the best villains TPK has concocted yet. Sure to give all gaming parties a run for their healing potions
[5 of 5 Stars!]