Please, learn the champion before playing it in ranked.

Not everything is pick up easy, justt because someone gifted you a skin for a champ doesn't mean immediate ranked time.

Take the time and effort to first learn and practice the champion, to many times do I see players first pick a champion (Difficult Champions), and jsut out right feed in games because they have no idea what they're doing. Maybe you can first pick an Annie without any knowledge of her and do perfectly well.

But please don't take champs like Azir/Zed/Yasuo/Bard, etc. For your first time in ranked.