Quote Originally Posted by Ferrinus View Post
I think you're right about Thunderhead; if they just made the spell instant and free by default the usage pattern wouldn't change. It'd be nice if maintaining a Thunder dot for a long enough time built up the charge you needed to cast a special Burst spell or something like that.

The transpose-F3P isn't optimal any more, though, since it looks like (true to the published tooltip) AF3 and UI3 don't reduce the opposite element's damage at all. This means that you get the same average damage using F3P in astral vs. saving your proc for the umbral->astral swap (and therefore that choosing to do one or the other is the main way to adjust the length of your astral cycle over the course of a fight).
I'm reminded of old PVP thunder where you had to fit X potency into it to get Thundercloud for both a burst and refresh.

That'd be neat if Thunder instead of a dot was a compiler, but then, they really hate Wildfire.