Rek'Sai Top - 7.10
Its not even that bad imo. Has some pretty bad matchups (who doesnt?), but into most matchups you can do really well if you play it right levels 2-5. I've played her top around 6 times in patch 7.10. I lost 1 lane, I went even with another, and destroyed game these 4:
21/0/2 S+: http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2512130965/206503774?tab=overview
10/9/13 S-: http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2511242673/206503774?tab=overview
9/2/2 S+: http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2504063844/206503774?tab=overview
13/5/7 S: http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2501260084/206503774?tab=overview
Her #1 Issue is you have to close out the game quickly bc she will fall off HARD once others start to hit full build.
The new mini-rework only buffs her top lane imo. I can't wait.