Quote Originally Posted by PercibelTheren View Post
Is healing done by reaction? Because that's not what shield healers do. Shield healers operate on knowing when attacks are coming and how to mitigate their damage. Reactive healing only comes into play if you're either playing a regen healer, or someone messes up and takes damage they weren't supposed to.
if you can come up with a Shield rotation that matches a boss's attack pattern so that no shield would be cast when not really needed be (aka, Overhealing), do share it.
Otherwise I still stand by my impression that it's still based on a reaction, seeing when a boss/mob is casting a harder hitting attack and reacting to it, casting a shield before it hits.