The Mercurio Method - Multi-step Casting
When Cata was released, we saw the first movement from away from predictable castsequences. Combined with the loss of "/click sequences" {of course, /click still works, it's the comma-as-timing aspect that was removed} and the addition of procs for everyone, we were forced to find a new way to make simple, efficient macros.
In comes the Mercurio method. Put simply, it alternates what it sends to the game on each key press, or press vs. release as the case may be. It works very much like the "Round Robin" most of us are familiar with but rather than sending A to Toon1 on the first press and A to Toon2 on the second press, it sends A to every toon on the first press and B to every toon on the second press.
This allowed us to use a predictable, standard castsequence-based macro on one key and our proc or other troublesome spell that doesn't fit neatly in a sequence on another key. This meant that, thanks again to the global cooldown in the game, at any given time, one or the other could go off and we wouldn't suffer aneurysms trying to figure out how to manage even more stuff.
Again, in response to the inevitable "how is that not bannable" arguement - it's nothing you can't do in the game itself with the command /swapactionbar. And while most people only use 2 "steps", WoW's default UI allows you to swap up to 6 actionbars, so you can use as many steps as it takes to get everything to work the way you like.
So there's that and here's how to do it with -
ISBoxer
HotKeyNet
Swapactionbar In Game
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