HELP ME ON MY TEAM

hello everyone! can someone help me building up my team for arena?

here's my team so far

5 stars -
Marth
Seliph
Jeorge
Abel
Hector

4 Stars -
Eirika
Effie
Tiki (adult)
Caeda
Fir
Selena
Lon'qu
Hinata
Raigh
Henry
Corrin (F)
Florina
Est
Jakob
Wrys
Azama

3 Stars
Olivia
Draug
Eliwood
Oboro
Saizo
Barst
Arthur
Frederick
Stahl

What team should i build for arena?

p.s - noob here :( and i need your help/suggestions