This is my first guide, but don't worry, I can promise you that it wont fail. You might have had too little damage output, but just follow this build exactly like im posting it and you wont be disapointed. I am not promising a definite win, but i promise you a ultimate hero, even when the enemy is fed. My build doesn't make you Unkillable due to the lack of vaynes health. so that means you shouldnt initiate a gank or teamfight.

Im not going to give alot of tips on how to play with her... simply harras in begin and dont do anything that youl regret...OK im not going to tipe out a whole essay because you all just want to see the build.

While playing vayne it is important that you know that you are not in anyway capable of tanking at all. unless you build tank? but that is not recommendet at all haha. if your are setting up for a team gank against multiple other enemies, make sure you are not one of the first ones to go in, or else you will only get 1 kill and die...that is not what you want is it?

Try to lane with a tank or a melee or any champion that can stun,slow, snare , or any movement inpaired relations. If you upgraded your Tumble ability, you simply just harass for now and try not to die, if you are two squishy heroe's laning dont go in the bushes in begin and rather play safe.

These are the reasons for why I have chosen this ability order.
To start with, you have to choose tumble, wich alowes you to be an exelant harass champion in begin (harass = first blood). Then you upgrade your condemn shot just to shoot your enemies away when they do too much damgae. then you upgrad silwer bolts, wich will deliver large amounts of damage, and will help you do that last bit of damage to kill an enemy. If you are in trouble, use condemn and then activate your ultimate and then use tumble wich wil make you invisible and give you that last chance of excaping