Returning back to the game! Need Tip/Help
All classes are viable at the moment. Nothing has been “nerfed into the ground” to the point it can’t complete any of the available content. The only limitation, in fact, is based on players who are unable to do the math, and significantly overvalue small mechanical differences while ignoring the vastly larger effect that player skill has.
So… play what you enjoy. You will do much better taking, say, a Necromancer that you know how to play well into a raid, than an Ele that you play poorly. Sensible groups understand that, and base inclusion on actual performance.
It is also worth knowing that we can’t predict the future, and so, can’t know if, say, the next version of the reduction in the overload effect for eles would be seen as “nerfed into the ground”, or just “hurts, but they still top DPS”. (PS: not that black and white in the real world)