Riot Can You Do Something About Xin?
With just Devourer and Guinsoos he was immortal and could 1v3 then immediately 1v2 then soloed baron... He wasnt even fed... just got Sated and we were done.
Edit: Here is the game - http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2103421865/206176227?tab=overview
You can see for yourself that he was underfed and me and Volibear were both sufficiently fed at the point he started being able to solo us.