Why do people first time a champion in ranked?
YOU DO NOT HAVE TO READ FULL THING JUST SKIP TO THE BOTTOM FOR TLDR.
This is probably one of the oldest questions in league of legends. I am currently a bronze 2 player who started late 2013 and playing ranked in early 2014. In my promos a player decided to choose Shen as our midlane laner against a yasuo. Since we needed a tank I was fine with the idea. Unfortunately he was not building tank as we found out in chat he was going full ap shen. He fed not only yasuo but trynd as well and on top of that he would not listen to our team. On tilt like most people would as as a lv 14 adc with no escape from aginst a lv 17 trynd and 16 yasuo, I looked him up and as the title states it was his first time playing shen ever from what the the lol website states.
TLDR: A player first time full ap shen in my ranked promos and I cant comprehend why. I want to hear opinions on why this happenes and what goes on in these players minds.