Kephren's a great card and I'd pick him over Belgosi too.
But I would definitely go Pegh for Ashiko. And Rodney over Scopica is another choice but that's a more open choice.
I might put Snowflake in for one the Skeelz. The 3* you've picked are kind of bland and a Skeelz hand would be called pretty easily.
^ totally agree, i would do the same modifications. I mean, Rodney is a must in this deck, you need at least one atk. man. and Ashiko is kind is kinda meh since you already have the Skeelz to counter SoA!
You also need some DR besides keprhen, i mean, Kephren can be used in an offensive way too, but only if you have another defensive card in your deck, you cant win the 4 rounds man, thats why your deck need ALWAYS at least 2 defensive cards. So, put Redra in.