User blog:NinjaPenguin92/Spark/Critial team?

Hello, I'm new to this game, i had pull alot Omni unit but i can't build a good team.I just know how to envolve it to OE. Pls help me build a team for Quest/FH/Trails with spark team or crit team or  BB damage team aswell.

Here my units(all are OE)

Fire: Shura(B/G) Rengaku(A) Rain(G)

Water: Melord(A) Vern(L)

Lightning: Rayla(G) Silas(L)

Earth: Felice(A) Daze(G) Quaid(A)

Light: Fina(B)

Shadow: Zero(B)

Thank you!!!