Please, do us all a favor and not play unfamiliar champions in ranked.
If you never played the champion before then please, stay out of ranked. It ruins the game for the rest of the team. If a champion is seeing good results of recent game changes, it does not necessarily mean they are an instantly learned, op straight from the start of the game champion. Just had a game where someone decided to first time kog'maw. They didn't even read the passive to know what it does. Why can't people just learn a champion in normal queue for a few games to at least get a feel for them?
So please, learn new (to you) champion's basic mechanics before you play ranked.
. I basically carried that game so dw fam, i got this!