User blog:SirVictor2015/Help units pls!!!

Hello, Summoners of The Grand Gaia, I came to a misson to ask you: What units should I focus?

I have 6*: Vargas, Michelle, Lira ( a bit imped and SBB 7), Magress, Rashil, Reeze, Edea, Miku, Melchio and Amy.

5*: Karl, Phee, Vernil, Lemenara, Dilma, Weiss, God Esna, Diana, Lubradine,Dilma,Logan, Zedus, Lilith and Mifune.

4* under: Zephu, Lario, Twins, 2x Ophelia and Shida.

Who should I 7* star and which of my units can do Mecha Gods?

Obs: I have 13 Burst Frogs ( 3 Emperors), 9 Imps and 2 Atrons and some evolutions units.

Oh, and one more thing: Is still good farming the Discilples(Zebra, Mare and Zurg) what units that I have can clear Trials 002 and 003? I wish to have them... And what spheres should I craft (Sacrifice jewel, Malice Jewel) I´m near to end Cardes boss fight. Thanks for reading it!

XD