Shaco gameplay
Shaco is a good jungler in late and mid game but he is very weak in early. As the game progresses and the implementation of new runes come into play shacos place in the game is not that great in regards to other assassins in the game. In other words my suggestion to this issue is to take backstab of cool down and let it remain active as long as he attacks champ from behind or let his Q do more damage when he attacks from behind as well. Also shaco Q invisbility can be extended to 8 secs could be nice.