Ranked is not made for experimenting.
Ranked is for competitive gameplay where you pick the champions you believe you are best with. It is not designed to test shit out because you A: "Don't care because i'm bronze", B: "I saw it on the LCS", C: "I'm just playing ranked to have fun". and D: "They got buffed so they must be good!". This also follows under the point where if you want to try Veigar jungle out, do it in normals. If it works for 3 games in a row with consecutive wins, with you carrying your team, then please, by all means bring it into my game, if not, keep it out of mine.