Don't get all defensive. I know a few rank 1 parsing ele shamans who say it is one of the easiest by far.
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Ok, i'll humor you.
1 Dot, 30 second duration or whatever.
1 Filler spell
2 Rotation buttons, one you stick a stopcasting macro onto. The other you just hit at the end of your cast.
Fire ele on CD
The end.
The hardest part of elemental is writing a convincing enough love letter to your tanks to get them to stack up the bosses on protectors HC
Difficulty within the class in PVE is defined by making active choices within a fraction of a second, juggling a resource, like shards, raging blow stacks and rage, runes, chi. Elemental shamans have mana, a resource that is spent almost entirely by healing if you decide to do it. Essentially they do not have a resource.
So with no resource, their biggest things to note are: Stopcasting macro in lava burst, fulmination when its ready. One is a proc, the other you get from pressing your filler anyway.