Kid invoker used to have the same voice lines as adult invoker, except for the master tier one, and sounded so much worser than the adult version. "Did I hear a squeak?" was the only voice line to use before for tilting the opponent, but now kid invoker's voice line for platinum tier is so based. "My powers are already beyond your pathetic limits!"
Wish I could link the sounds but I don't know how to do it, and the dota fandom page hasn't been updated yet.
Voice lines Bronze and Silver tier-
Voice lines Gold tier and platinum tier-
Chat wheel-
Source: https://www.reddit.com/r/DotA2/comments/rgv5hs/new_kid_invoker_voicelines_for_dota_plus/