Idk which Nagne Thorns is watching but his Ahri is honestly underwhelming. Burns his summoners and ults very freely, overestimates his damage, itemizes poorly, and just doesn't make big plays like other Ahri players. I believe that Ryu is a better mid laner and that Ryu's main problem right now is a slightly small champion pool (if he can get 2-3 more champions he'd be solid especially with a team like KTB having so many different playstyles).
I'm surprised Sword didn't go double Triforce champs in Irelia/Ezreal or something but honestly Expession's been playing solid so far (Darien picking Shen fixed Expession's main problem IMO which was timing when leaving lane, Expession just never left lane lol) and Dodoria will carry all.
Also Cain has surprised me a bit because his Sona looked very shaky during NLB finals but I think this was more towards Voidle not giving respect to Thresh as Sona rather than Cain playing a good Thresh.