the RNG of TFT
the RNG of TFT is too much to make the game in anyway fair to the unlucky. First off is the fact that item drop rates are random meaning you could go 3 minion rounds without getting a single item while other have 4 completed items. Second champions are done nicely however are heavy RNG based. one game played the person who ended up winning had 4 Tristana's in their very first shop, and ended up being the first with a tier 3 champion, who was also fully kitted with 3 items. that person ended up destroying everyone at every turn. the game was effectively decided before the first pvp match even began.
another thing is this game is getting ranked soon but there are still so many bugs. many people have experienced their champs afk'ing. i too have experienced this at least once per game. i have experienced 3 other bugs, 2 visual, and a board. the visual bugs managed not to affect the game too much, but were a hindrance. the first which only caused confusion, was when i picked up a champ from the carousel the champ that i dragged around was a different one then i picked up however when i went to my board it was the correct champ. the second was my shop had the images completely mixed up and what i bought was not what i received and ended up buying and selling everything because nothing was what was shown. the third bug was an exploitable, but not too powerful, bug. when i swapped out a champion with a force of nature for someone who didn't i could still swap them and it would cause me to have more champs then i should because the force of nature bonus would be removed.