knightofpherae Echoing what woozi said, using the feh gamepress page you can get a look at all the different units in the game and see what variations (boons/banes) they have for their stats. There are a few free units to be gotten upon starting off, so be sure to pick them up so you can have a somewhat easier time with things. Other than that... I would recommend saving your orbs (used for summoning) for a little while, as we're coming up on the third year anniversary and there's bound to be some cool summoning events then.
Oh, and a new banner is coming in a few days.
Edit: On an unrelated note, happily summoned a Takumi off the 2 person Leo/Takumi banner last night. Got one to keep, just need one more for fodder for my Jaffar so I can complete the Close Counter/Vantage build and send him into AR to troll people >:3