Got pretty sad with mibr's performance at VCT Americas so i think this would be the ideal line up for them
Pancada - Smoke
Sacy - Initiator (Second caller)
Raafa - Flex (IGL)
Bezn - Sentinel
For duelist, there are some options in brazil:
Askia / Sato / Havoc / Qck
QCK was one of the best duelists in brazil back in 2020/2021, I really don't know why he was transferred to another role but after leaving furia's main team he returned to brazil and is playing very well as a duelist in ranked
Bezn was also one of the best brazilian players in 2022 while playing in NIP, still very good btw
I know sacy likes to turn children into monsters, just like he did with aspas and less, I think any name mentioned above would be a great option for a duelist
Discord