We already have an ice tank in clan. Light tank? Well..blind is really helpful, and I still stun and cancel priests heals. And I can do it with 3 or 4 melees pounding on me without being afraid, lol. I also am versatile enough to the point where I can use my aztek faun 7 to get a better stun and slow rate. And once I get blink..on saturday, It'll be fucking beast. When our parties have both of us tank mages (similar stats, except he has a dread) we basically never die. ever.
Edit: oh..and I see what everyone means about the gabs. It has saved my ass so many times :P