I know how to read the chart, but the chart doesn't explain WHY it works. Notice I said I have to rely on an external web site for the information, I meant that chart and various other versions of it. Following the chart blindly gives me no insight into how to do things without the chart, so I can figure out skillchains on my own. Reading the chart during a time-limited event is also very difficult with just how many weaponskills there are on it. What I'm asking is for a simple explanation of why the chart works, and how the information on it was found out. As far as I can see right now, it was trial-and-error, and that's a poor solution when the event instructs you to "remember your elements" when there is no in-game element indicator.