User blog comment:DoctorAsawa/League of Targon's - How Riot Effectively Killed Junglers/@comment-6061249-20131124110820/@comment-5663427-20131124131708

The same problem is with  Tank destroyer. Numbers aren't broken, but mechanics and in order to nerf Vayne to the ground Riot would had to nerf whole attack speed mechanic, all items, stats, anything. So if there is problem that cannot be fixed with numbers, then the only thing what's left is rework