Shaco is the most balanced assassin in the game, dude. He is an early game ganker/invader. That is LITERALLY the only reason to pick him.
I'm sorry if you can't figure out how to handle that, but nerfing a champion's ONLY strong point is dumb af. Shaco falls off harder than nearly ANYONE in the game come teamfights, usually being reduced to a splitpusher. Just pull up your big girl panties... expect that he's REALLY strong for the first 10 minutes of the game and play around that fact. Don't just whine becuase he jumped you at red and killed you. Mix up your jungle paths. Duo and have a friend assist you at your second buff in case he's there. Ward your own jungle and avoid him... or even invade HIM while he sits in your jungle like a tard waiting for you.
But stop your whining about "omg nerf this guy because I died to him!". Instead, be an intelligent human being and see HOW he killed you... then change what you are doing to make that less likely. Improve at the freaking game, don't just try to get everything you're to lazy to play around nerfed.