barrier suggestion for tanks particularly

That helps everyone not tanks. And last thing we need is barrier being used as an engage tool.

completely useless change. 15% is like nothing and only a few non-tanks would be happy about it. what you could do is you could give barrier a %bonus health scaling. say, 30% of your bonus health. still as a tank, your least problem is that you are not tanking enough. you really wanna be usefull in some other way, say CC or damage, to be threatening as a tank. if the enemies use all their cooldowns on you after you used yours, your job is done. die.