A lot of ppl seem to like thrash talking dark, but I should really point out, if you're a dark main, don't worry too much. Dark really isn't THAT bad off. It's true, right now their himes don't have the best synergy. They have strong attackers (and debuffers which will fall out of favor) and are missing just one really good support hime. But it's already mentioned that Osiris and Hades will get buffed soon, and a good Osiris buff/AW can easily fix a lot of Dark's issues. Worst case, they are just one good new buffing hime away from being right back in the mix (and that can happen any day, and honestly, I'm pretty thankful it isn't one of the new limited new year ones).

The thing that dark DOES have, is an amazing weapon grid, with greed (phantom) UE giving them more SSR than other elements (except Light), most vet Dark weapon grid are full of FLB weapons, to the point that the latest FLB weapon (Medusa's sword) is just considered thrash unless you're really behind (atm: 5 dark UE axes, 3 hammers, 2 apoc lances). If you somehow manage to luck into a Null AXE? You're set.

With that grid, the coming buffs, and an AW or two? Dark will probably be fine soon enough. It just seems like right now they are focused on buffing up water because a new round of towers are coming up and they are preparing people (or taking advantage of people preparing) for that.

tl;dr: don't sweat it.