Gladiator – Renata
It’s no exaggeration to say that in the first version of season 6.5, the Gladiator – Renata squad is the strongest team-comp in Truth Arena with both strong attack and defense capabilities.
Furthermore, Riot’s rework of Rek’Sai also had an extremely negative impact on the Fighter system and weakened a series of team-comps that relied on it.
Inventor – Kha’Zix
With the ability to buff the terrible AD stat from Tech Bear, the Inventor squad combined with a physical main force proved to be very strong in the previous version.
Not only did Tech Bear have his AD buff reduced, even Ezreal received a nerf and his damage output was greatly weakened.
Mutation
Although not too dominant, the Mutant squad is still a strong team-comp with the ability to carry terrible odds from Malzahar.
In addition, the nerfed damage that Malzahar causes also makes the Mutant team much more difficult to play at the end of the match.
Samuel 
Eliana