The Shaco threads made me realise that:
he has high mana cost, cough
he doesn't have disengage if he goes in, cough
he can't lane,he can't clear quickly the jungle in early game making him terrible in the early lvl.
he needs at least an item (or 2) _cough _
his base stats make him truly squshy and,he cant' do damage if goes tank, cough
actually counters him, _cough _ 
. and how is his gank the strongest? he doesn't have a hard cc, you gotta be retarded to be feared by his boxe, his slow is 10% at lvl 1.