New punishment for toxic players
Instead of banning them or giving them a chat restriction I suggest that they receive a Banner of shame in champ select and in loading screen that way people know that they have been toxic. Players with the banner of shame will start the game automatically muted for everyone and it is the other peoples choice to un-mute them and if they do they can't report them for being toxic as they have been warned. That is why I believe that you should ban players for grieving or assisting the enemy team and just chat restrict and mute the ones who play the game well but are just toxic.