Hi all, now i got 5* water splyh and 5* water pierret, i just collect enough matetial for awakened one of it. Want to seek for you guys opinion whether should awakened water splyh or water pierret 1st better?

Currently after pvp point 16xx then feel hard to win,
my pvp team got :-
5* water Tyron
5* water Pierret
4* water Vigor
4* fire Sieq

I need advice on how to build better pvp team with better combo..
Here is monster that i got.

4* fire Pierret
4* fire Phantom thief
4* water Mystic witch
4* fire Inferno
4* fire Iselia
4* fire Spectra
4* wind Griffon

Which mosnter ccan be replace to have better combo in pvp? And which monster worth to evolve to next 5* first?