Talk:Jayce/@comment-4542190-20150721231120/@comment-5211662-20150913034902

Void Fizz has the filter emulating other Void champions voices, but he does not get new quotes.

Underwold Wukong has the filter emulating other Shadow Isles champions voices, but he does not get new quotes.

The abover user explained all. New quotes would make the skin cost more. It also takes a lot of resources to make new quotes for champions, as you have to hire a new voice actor. It is not that Jayce fights for the good guys - It is more of a budget issue than a lore issue.