This is a change from TBC when what it used to do was after striking with an Amelie Critical Strike, you enter a focus state and the focus state decreased the mana cost of the neck shock by 60%. Now it's just a flat 45% and you're going to be keeping frames shot higher through the fight. This means there will cost quite a bit of expenses, and you'll save 45% WoTLK Classic Gold in this manner. If you love Elemental Shaman in TBC. The Elemental Shaman will be your favorite in the wrath.
Why I'm playing more enhancement is because it's a good fit for my current playstyle. Currently, elemental has plenty of cleave opportunity. It's a really great single targetand an excellent group play capability, but it's just not altered that much from TBC.
Now you can take advantage of lava bursts. will be used to keep Flame Shock up 100% all the time. You're going to be using chain lightning to cooldown and you're going to be firing lightning bolts, and making lavas bursts when it's off cooldown.
There's really nothing more to it than that, other than maybe getting in close and putting magma totems down for AOEbuy WoTLK Gold and then firing them and over and blasting a lot of chain lightnings into the targets as they cool down. It's just not a drastic shift. So as I say it boils down to whether you like Charmin from TBC Elemental Shaman In TBC I'm sure you'll enjoy it in Wrath.