To skip ahead a bit in my Mage tutorial, let's talk about Parcholock Glass Cannon. I don't want this series to be about me telling you how to play, so consider this an object lesson, rather than "the answer". Really, what this post is about is the idea that a viable build is more about your ability to play and enjoy it than it is about theorycrafting numbers.
This is my primary single-target, dps raiding build. I call this article, "how to do it all wrong and win" because the theorycrafting says: don't do this. The thing is, it works very well and does the most important thing that you can do for any raider: increases situational awareness. I've given up a lot of rotation complexity for simplicity in order to know what's going on around me.
If you're not familiar with the standard pyrolock build, see
Bluedot's coverage of the topic. I break nearly everything he suggests, below, and I'll concede that if I had the ability to master my priority casting the way he does and
still pay attention, I'd be a better raider. The fact is, though, that you need to focus on staying alive and not wiping the raid
first and only then think about doing more damage.