Now, I've put that video up there because I think it's the culmination of one of the most exciting Arena finals I've ever watched. Bear in mind if you're watching it on speakers that the commentators get pretty excitable at various points, and there are a couple of "cr*ps" in there.
The Arena is, in my opinion, the biggest rush in the entire game. Nothing in PvE can compare. And these guys in this video are the best of the best -- quite literally, in fact. That's what this match was, the final match of the BlizzCon Arena Grand Finals of 2011. If you enjoyed watching it, I heartily encourage you to watch the rest of it.
If you're a pure PvE player, you may possibly have watched that and thought "Holy moly, what on earth just happened?" I wouldn't blame you. It's fast-paced, reactionary, and confusing as all hell when you get started. So that's why I'm writing this post -- to help you get started.
So what's Rule 1? Resilience. Resilience, resilience, resilience. We touch on this in our initial PvE to PvP guide, but for Arena, I can't express strongly enough how important it is.