Attack speed and Life steal champions

Riot you guys need to nerfed these champions. It is so stupid to see a champion that already got quick attack speed which equip with items that gives them more attack speed with a little bit of lifesteal carry the game. Master yi is hard to beat at max level even in a gank because he has attack speed and lifesteal. How the hell is that fun to play. That is not balanced at all. Do not make me start with tryndamere because him and master yi is the God of attack speed and lifesteal. What is the point that im at a higher level get beaten by these champs because they have these items. This is stupid Riot. This game is not fun with them. Rengar is even crappy to playever since is update and im facing them in jugle and lost which is stupid because its not balance and rengar is a legend. Riot please im begging you nerfed these champions if not please give SHACO, RENGAR and KHAZIX an upgrade against these Champions. This is stupid. I was full health and tryndamere dive me under tower with low health killed me and attack a few minions and he is at full health again. What kinda crap is that Riot. Fix this. Idc If its tryndamere stupid ult. Nerfed this.