SCARZ roster -Allen +xnfri
would be best but if jemkin and kristal count as import players it won't be possible.
Therefore,
Duellist - tenten(F/A) or iZu(JDT)
Initiator and IGL - JoxJo(FL)
Controller - syota(FL)
Sentinel - hiroronn(FL) or Anthem(DFM)
Flex - xnfri(DFM) or Anthem(DFM)
6th - Meiy(CR)
Duelists would prefer tenten if at all possible, but that is currently difficult, so iZu is the best option. The controller would be the choice of syota. He could be better than Sugarzero. For sentinel, there are many opinions but hiroronn is very young and talented so I went with him. joxjo is the only other choice for IGL. Finally, I would like to talk about Meiy. He is a very good player, but Korean duelists who can speak Japanese are much stronger than him. Also, I don't have the impression that he plays well in other roles than Duelist, so I put him as 6th player.
PS, please be sure to change the coach. I personally prefer Jaemin(NTH).