Riot Games have shaken up League of Legends meta again with patch 9.10, nerfing one of the most controversial items - Guinsoo's Rageblade. The main users of the item started suffering, starting Vayne and Master Yi's losing streak.
Vayne has been one of the most controversial champions in League of Legends and Riot Games have consistently struggled to balance her out properly. The usual cycle of Vayne's power is that she becomes ridiculously powerful for a few patches, gets nerfed into oblivion and then pops up again as an overpowered champion at some point.
Her latest spree began after 9.1 patch brought a buff to her ultimate, Night Hunter, that would reduce Tumble's cooldown by 50 per cent for the duration. Soon enough, Vaynes over the world started building Blade of the Ruined King and Guinsoo's Rageblade, which resulted in a monster that peaked at 55 per cent win rate on 10 May 2019.
True damage on every second attack, coupled with increased mobility resulted in a champion that was hard to kill but tore through tanks as if they were Yuumi.
Patch 9.10 nerfed both of Vayne's strong points. Night Hunter's cooldown reduction for Tumble now scales and Guinsoo's Rageblade activates on every third hit instead of every second. This resulted in Vanye nose-diving from 55 per cent win rate to 47 per cent in Diamond range.
While both nerfs affected her greatly, it is quite possible that the Guinsoo nerf was the real driving factor behind her lower win rate. This is evidenced by Master Yi, another usual suspect when it comes to buying the infamous item, who also took a great hit, going from 53 per cent win rate peak down to 48.5.
Granted, Yi's abilities were also nerfed but none of them had too much of an effect to his previously greatest source of damage - the obscene amount of true damage.
The third high win rate champion, Riven, who was the target of patch 9.10 nerfs seems to have fared well, even after becoming less able to spam her dash shield and lower damage from Conqueror. She was hovering in the 53 per cent win rate range at the time of writing, down from 55.