I have had very good games building DPS with her true damage from silver bolts and the bonous from tumble this is very effictive the attack speed allows you to get many hits to stack silver bolts and inbetween with your ult you can do a lot of damage with the % from tumble
Her eirly game with this is very powerfull if you can get 3 hits to make silver bolts go off i sugest to harass but wate to turly go in for the kill till lvl 2 or 3 so then you can do a lot of damage with tumble and silver bolts try to stay in lane till you can buy tear one boots and the zeal to b for the first time if you are rilly fed stay in longer and wate till a beter time
with vanes passive you should not have to rush boots to catch people untill later in the game wonce you get the zeal you should be gitting the silver bolts ture damage very quickly evean more so if you are able to get beserker greevs with it
the reason i like to build attack speed first is so if you stack your (W) or silver bolts you will be able to dish out that ture damage faster to DPS down your enimes
the reason i have you late game build Damage is so then with tumble you will have more damage with that
i dont use her cross bow to often in team fights it is very helpfull if you come from behind and use it to push people into your team to get a quick kill to turn the numbers of a team fight
i recomend that you lane with a soport i recomend allistar because of his knock up and he can tank for you while you dish out your combo
the standard combo i use is to get a basic attack then tumble in and then attack again to max your damage output this combo is so quick and powerfull that most of the time the other player will back off
if you are able to sutn the player with your corssbow the try to get another combo in befor backing off.


Thank you for reading this have a great day