Some cool things about Gladion's team that I just would like to point out.

>His Silvally holds the type that your starter is weak against
>Four of his five pokemon are happiness evolutions
>Weavile only evolves with happiness during the night, Lucario during the day,
>None of his pokemon are fully evolved until after the Aether stuff, implying he finally gave it his all as a pokemon trainer after his family drama was over
>Porygon-Z is the only non-friendship pokemon he has, and by the time he has it, Aether has turned over a new leaf. Porygon-Z was designed to go into other dimensions, such as Ultra Space. Most likely it was a gift from there.
>Everyone but Porygon-Z is pretty edgy

The only thing it's missing is Mega Lucario and Weavile to have a Dark type Z-Move(Although, he cam form not-Victory Road, which has the Icium Z, so that could've worked too)