This isn't a tanking specific question but I play a tank and the self buffs that we get as tanks are very important for mitigating damage. Basically I am a little confused on how all the non GCD abilities work. The first instant that I use usually goes off without issue but after that it gets annoying. Is there a hidden cool down between using instants or is it a server lag issue. When I try to work multiple instants in to my rotation between GCD skills it gets even more screwy and I just end up mashing the button until it goes off. If someone could explain how it works or give me some tips it would be appreciated.