Is this fair??

So i just done a TFT match then i feel like this isnt fair at all like her mana require to use ability is too low, do you know the feeling when you just escape her stun and then she stun you again then again? how is it fair, and assassin 350% crit dmg when you have 6 assassins how is it fair? they can 1 shot your tank or make your tank from full health to low health in 1 auto and there are soo many assassins if you have 5 assassins you just need to give a random chess thats not assassin a youmuu then you get a +350% crit dmg, how is it fair and especially that draven his dmg is ridiculous, and he can a tons of dmg if you give him a IE or a divine