Evoker should definitely have a Tank spec added! I feel like it is such a missed opportunity for Blizzard not to do so. For every reason I read against evoker tanks there are at least 3 counter points that are valid. Personally I feel like thematically a Dragon should be able to get up in your face and tank, this coupled with some of their animations really has me wanting to tank with one as a player who primarily plays dps. It would also give lust to the tank role which is currently not in the game and help that much more in group comps for M+. Finally a caster tank has been a much wanted fantasy in WoW since Gruul, Blizzard this is your chance to give us an amazing intellect tank.