Well, Shaco is a minion with a static AOE fear with 0 burst and medium DPS, a mobility medium cooldown camouflage that has been nerfed into oblivion (sadly not the elder scrolls' Oblivion), a trickery ult that any experienced player who played often against Shaco can differenciate from the real one (especially because it doesn't copy shaco's animations for spells unlike someone else's clone and his DPS is purely dependent of Shaco's items), and his passive needs setup.
All this combined makes Shaco even worse than Ashe in the current state of the game. At least he has an escape, but when behind unlike ult bot ashe he can't do shit except over ward, but Teemo does it better while being better at everything, having a cheaper build, more base damage, DOT and range (and ms buff if it counts).
Like stated, why play Shaco when Wukong, who plays nearly without a passive, has access to Shaco's playstyle but he can make it just 10x better? His base damage on ult is higher than Shaco, he can AOE armor shred with BC, armor shred with Q, hits 3 targets on E dash and block skillshots with W while being camouflaged. Shaco deals damage, has a mini fear that is completely placement dependent and his kit is completely underwhelming. Any jungler beats him 1v1 or just farms/ganks better, while bringing more damage or CC to the game. Even Elise. Even any non jungler champion played jungle. Shaco depends on gold for everything since he's a minion.
