Imo 2 chakra dummies is overkill. Since this team's main weakness is control on Ay, with his base hp non-targetted heal is almost meaningless. increasing shield ammount on Ay even lowers the chances of him getting healed. That makes mabui virtually useless. I'd use either darui (sasuke can do since u dont have darui) for barrier or omoi for chakra gen, dmg, immunity for him and main. It's a r2 nuke team and any blitz oriented teams that fail to kill when they have to have disadvantage, no matter the matchup. Go with dmg, like it was meant to be.