Vyne is a Hyper Carry that is one of the strongest late game's in game..To master her you need a lot of skill with adc's and a lot of practise before playing her on ranked.

Playing as a Vayne on ranked especially on high elo you need to watch out for counter pick's cuz playing against MF, Corki or Kog'Maw is very very difficult to do..So if they go with one of them don't take her play it safe.In lane tell you'r supp to ward brushe's and watch out for ganks.You can get win 1 vs 1 easy against any champ but don't get too greedy and never go alone to farm if you got you tower destroyed cuz you'll get ganked by 5 of them and that can ruin your whole game..In teamfight try to position yourself as much as you can cuz it's inportant(aa, tumble, aa back, aa, tumble, aa) and try to get your stack of silver bolt's on a champ..

Pros : Cons:
has cc small range
nice dodging material with tumble squshy early game
ms on your passive can catch fleeing tagets no escape material
hyper late game
can carry 3 v 5

When trying to condemn an enemy against a wall use your flash only if you are shure you'll kill him but in most cases just Tumble + condemn.Stacking silver bolts is much faster when using aa, tumble, aa, you get your stacks instantly. Use Night Hour when ever possible (helping your teammate, doing drake-baron, escaping)..

while farming try to last hit or if you can just stack 3 stacks of silver bolts..It's hard to farm with Vayne when you are laning against Adc's like Cait, Mf.. Cuz of their poking.. That's all i have for now if you wan't some more of this guide pls commment .. :D I'm out..