This is a move set that I gave to my Confagrigus.

Nature: Bold
Item: Lefties
EVs: 252 HP, 189 Sp. Def, and 67 Defense
Moves:
Will-O-Wisp
Toxic
Hex
Calm mind

In this set, you have two stats to choose from and use them at your disposal. Calm mind helps raise that low special defense even more plus it gives you some special attack to blast your foe with hex.

The only problem is that normal types with a possible ghost move will get in the way, especially Ursaring.