Congrats.
If you ask me, you should continue to boost your Fire team thanks to Belial. Your choices are Svarog (very high damage per turn), SSR Fire Amon (team burst accelerator + team buffer) or Vahagn (amazing DPS with a debuff, but needs to be at high health to be effective, making her less effective as a hard carry unlike Uriel and Svarog).They're NOT an insane boost. I said that already. They're decent, IF you can make them work. Yet again, Phantom weapons do not make or break Grids. They are simply a cherry at the top.
And you know, my teams, Accessories and Grids are public knowledge in my a pain in the ass to use advanced calculator.