Not as funny as as it has been of late. Xyklon comes off as a bit of a buffoun instead of the uber-evil, yet quirky bad guy we've come to know and hate. I actually like his goblin lackey better in this one.
Xykon is powerful and he knows it. He doesn't HAVE to take his enemies seriously. Even the Order only managed to stall him, and in the process they actually HELPED him.
I'd guess wis. I mean he's immune to most mind-affected spells as an undead, so who needs it? Besides, his plan to let Elan pop the last gate seemed pretty decent int.