The meta?
Personnally Ithink it’s best to play a class you know well, with a build you mastered. Than trying to play the Meta and having the build but not the skill.
You won’t compete with good player playing meta but you’ll go fine with bad player playing meta.
Meta is made by the top teams who consistently win tournaments. If your able to build a good team comp that synergies well enough to consistently beat this current meta then those builds will be considered meta. Metabattle is a good place to look for viable builds.
Necromancer Main
If you’re not a Premade player the “Meta” is sub-optimal for you. Metabattle promoted unfortunately only Premade builds. As a PUG you’re here right: http://intothemists.com/guides/