TFT is not rng based

Believe it or not, this game is not fully rng based, and it's way worse than that. Yesterday I used kennen-morgana-atrox comp to climb from dimond 4 to dimond 1 losing only a few games. Since this comp has three core damage carries all i need to do is to upgrade 2 of the 3 to two stars and it will maintain good standing. However, starting today I just started to not getting any one of the three 3-cost minions. They would literally take forever to come, and by forever i mean up until the stage where everyone else has 2 star 4-cost minions, thats when i get a 2 star 3-cost on board. Waiting, upgrading, searching, none of them worked and i fell straight to dimond 2 0lp. This happened to me many times before. When i used 6-demon atrox-carry comp and climbed a bit, suddently all the atrox just disappeared and other players were getting 2 star atrox for free even when they were not playing demon. When i used assasin comps and climbed a bit, suddenly all the akali disappeared. And it's not just for one game or a few games. It was constant - every single game until you realize you are not winning anyways and decide to quit. Do not tell me switching to other comps works cuz it does not. It is fairly easy for the system to figure it out - when i sell my demons and switch to sorcerors they simply stop giving me more sorcerors and leave me with a whole 1-star sorceror comp. All the system needs to do to keep you from winning is to not give you the third card to level up to 2 star, or to give other people 2 stars before giving you any. Now you may ask, what's the point of riot doing so? Its the same as what they do with lol ranked games. They want to keep everybody's wr at around 50%, so people who are good cannot climb very fast the those who are bad don't get tilted. As a result, you will have many unwinnable games in a row sometimes and many unloseable games in a row sometimes. No matter how their staff is going to deny it, it is simply too obvious.