I hope the people who are saying Xin are the ones who were actually around when he was released and not just saying Xin because everyone else keeps saying it.
With that said, Vayne.
75% more damage with Tumble, 1.5 second stealth, 10 more damage with Silver Bolts, almost 400~ damage with Condemn combined with the stun, Final Hour gave 35/55/75 AD and Quadrupled her passive, which gave 40 MS, she had 555 range and 310 MS.
Oh the horror of facing off against her my first time. --- The statement below is false. The statement above is true.