There's no unbalanced champions, it is just a matter of how noob you and/or your team can be in comparison to the enemy's, item selection against their team build, farming, evading, objective focus, last hitting minions, and overall macro play. The game is really good overall. Edit: the Game itself keeps being great, but puta a protection for afk players, it's just extremely stressful to wait minutes for a game, and them play 20-30 minutes just to loose a mark on ranked cuz of half team afk