Perfect Mask of Seerus, shadowsun slicker , dual gun dmg med trinks , a polaris, a blitz, a shivermist buster, and anyother auxilliary weapon, then a swifty/any other shield that can take vana’s hit. With these you can walk through fsc even if everyone else were to be useless, given proper experience :3..
One of THEBESTSSETS in the game: Skolver set (Swift or 5* skelly), Gran Faust, Polaris, Umbra driver (swap with Voltedge if it is nesesary) Storm Driver. It is the best in URJP, also Protects you of each attacks, while the shock inmovilise enemies. Also works for Lockdown, Swapping Umbra(or Voltedge) Into BTB. In ice heart, to make it work just swap GF for BTB/FF and use the voltedge.