Quote Originally Posted by Hachiko View Post

Being able to take an 8k hit doesn't mean jack ***** if your healers can't heal 8k before the next 8k hit comes in. And it means even less if it takes your healers 33% more mana to heal you as a WAR tank.

That's why people say it's not viable.
^ This. Also, that 15% from being Infuriated still doesn't justify the cost to heal up all that damage.