This model is an unreleased Marauder Miniatures wizard (or Magic User) initially referenced MU3. It is now distributed by Warmonger Miniatures as a "Time Warped Wizard". To be honest, I understand why this model was not released, as the sculpting job is err... quite bad actually.
I've tried to improve it by replacing the original staff with a new one, stolen from a Rackham orc shaman. I will count him as a staff/standard bearer :)