hey guys! I'm newbie, just download the game 1 hour ago, than I spent initial gems and got these cards, is my deck at last decent, can I already play on rookie rank?
You can start playing pvp whenever you want after a while it will be pretty clear when you'll have to start spending money for more cards. But yeah play and see how far you can get then prepare the credit card
It's not undefeatable. Shi En is very weak and loses to all decks with good monster effects which is the whole meta. It can reach KoG but you will have a hard time.
To answer OPs question: Yes, you will have an easy time in lower ranks (Rookie, Bronze, Silver). Your build is good too. Check out some other 6Sam decks and you might want to include some other cards from there.
Also, make sure that you perform a lot of Synchro summons and Xyz summons. After a while, you will unlock 2 more extra deck slots (one for 100 Synchro summons, one for 100 Xyz summons). This will help you to add some more variety to your extra deck.
Also going to put this out here because it really helped in my experience. Try those loaner deck duels. Gives you a taste of an archetype and see if you fits your playstyle.
tem uma outra box q tem algumas cartas boas de six samurai q vem a fusao(q nao precisa de poli) e o renascimento deles eu indico vc pega uma copia deles e coloca uma 3 copia do estilo do six samurai alem de pelo menos mais uma copia do syncro deles ae vai fica bom