First a small disclaimer to my advice so you can put it in perspective. I've been playing this game for a little over over 1.5 month now, so I lack some in-depth information that other users might have. Therefore I will refrain from giving such advice and leave that up to others. Next up I haven't researched Wind/Thunder teams so I'll leave that to other people to comment on. Also many people have mentioned that Dark teams are in a bad spot right now, so that would probably not be your best pick. But here is my opinion for what it is worth.

Quote Originally Posted by Unregistered View Post
So after a rather long break I'm slowly getting back into this game and I have no Idea where the meta is going so a bit help would be nice.
I have two questions for you, that I think are fairly important for the potential use of a MT:
1. Which teams do you most enjoy playing with, or does this not matter?
2. What SSR eidolons do you have?

Quote Originally Posted by Unregistered View Post
Fire: Yamaraja, Mars, Svarog, Ares and Ra.
Honestly this team is probably my strongest one so I don't think Mtixing a Fire chara would be the wisest choice.
I think this is fairly solid yeha. But if you want to invest into this more, it would probably be either Uriel (REALLY INSANE DAMAGE, I even used caps!) or Amaterasu (Core).

Many people have said that Uriel is busted, although lacking in the bust department (sorry couldn't help myself), two weeks ago I was looking for advice for my Fire team. And Uriel is just insane with her bursts.

Amaterasu applies ATK & DEF Down (B Frame -20%), Blindness with, I believe, a 80% probability. And is considered core for fire. That said Debuff Doomsayers would probably not like this decision, as her value is in her debuffs. She would probably replace Yamaraja, since she only applies a ATK & DEF down (B Frame -15%).

Quote Originally Posted by Unregistered View Post
Water: SSRNike, Gabriel, Shiva, Lakshmi
Really solid but I feel this can use something
First of all something important to note:
SSR Nike: Applies DEF down (A Frame -15%, at lvl 55)
Gabriel: Applies DEF down (A Frame -12%, at lvl 45)

You have some overlap here and you would benefit from some other debuffs, debuff doomsayers wouldnt like this however. I dont know who would be better but here are some options for you to consider to replace Gabriel:

Snow Angel Raphael (Defensive):
1. Extends stun, ATK & DEF down (B Frame -15%)
2. DMG taken down (30%, 2 turns)
3. Removes an active orb from the overdrive meter (Once every 6 turns)

Cthulu (Offensive):
1. Removes an active orb from the overdrive meter and, if succesful, increases Burst Gauge by 15% (Once every 8 turns)
2. DEF down (C Frame -20%)
3. Applies Dizzyness and ATK down (A Frame -15%) and increases her ATK (C Frame +15%)

Ryo-Oh also applies DEF down (A Frame -20%), yet she is very strong overall. However you wouldnt benefit as much with her since you have SSR Nike. Aphrodite would fill SSR Nike's role better I believe; you would suffer from diminishing marginal returns with these two however. I think Asherah would be worth mentioning as well, however I believe you would benefit more from either Snow Angel Raphael or Cthulu.

Quote Originally Posted by Unregistered View Post
Light: Gabriel and Shamash
My crappiest Element with crappiest Grid for me since I have atrocius luck with light himes. I think this one I can't help anymore lol
I agree!

Hope this helped you!