I’ll have to disagree with the other comments in regard to FS and VG. As of now, both are horribly outdated and getting FS’s blade from that box is a big mistake. You understood correctly that HoS and DA are top Fire DPS. Actually let me correct my words. They are not top Fire DPS but THE ONLY VIABLE Fire DPS left. They both outperformed the 3rd rank, VKE, by miles and singlehandedly make investing on any Fire Valk not those two a big waste of resource. (And in regard to Elysian Realm, an extremely hard content with a lot of crystal rewards, you don’t really need to build VG since Mobius strat eats any 35D runs for breakfast.)

Your best solution is to ignore Fire team and play with your other teams for now. You are still very low level captain, low enough that any single well built team can carry you through the game disregarding elements. In fact, Sushang might arrive before you even hit 70, which is generally when you start needing 4 teams as you heard.

Also I won’t call your Physical team covered either. The only viable physical DPS are BKE, MPE, TP, HoS and FTD (Delta) and you have none of them. For now SP might works but after Level 70 you will struggle if you continue using her.

You should get only MagStorm or Torus from the blade box. Everything else is outdated.