I kind of play it, though i'm mostly just in it to pull some characters that I like tbh, i'm not too familiar with the Meta and I think it might be a little too late for me to try and understand it.
Sorry I don't have pics, but my favorite units are:
Summer Tiki: The only fanservice character i've managed to pull. I liked her in awakening and she seems really good
Brave Ike: I like how badass He looks and he also seems like a good hero.
Lissa: Loved her in awakening and i've pretty much made her my Fire Emblem Waifu at this point
Robin (M): Male Robin has always been a favorite of mine, so i'm currently trying to build him up.
Gotta say though, i'm very jealous of your Christmas Tharja and Robin. I tried really hard to pull either one and came away with nothing :(
The games pretty fun though and it's the only mobile game (other than Mario Kart Tour Potentially) that I would spend money on.
it's a shame its not more popular around here...