I just heard she is a pentakill machine when i started league a few months ago,so i gave her a try,i got a very bad kda the first game with her (she was harder then i thought) tho she is a very fun champ to play :).now i have 1 pentakill on her and a few dozen of quadras
It can be anything,a buff,nerf,her kit,design, even lore
My personal worst experience is when ive got a yuumi that was just flaming and talking shit to everyone and was literarly holding her R for the next game,tho i nelieve this is what usualy happens when u get yuumi supp
Personally, I hate getting Lux. They usually steal your kills and CS, or miss every Q and ult except when the enemy is already low, then suddenly they hit it and steal your kill. (Not counting actual kill secures, obviously.)