His R is op. When I used it on Vi, her clone was using the Vi's W passive making % dmg.
When you use it on adc in teamfight, you play 6v5 with 2 adc (clone hits 75% dmg, but i saw he also can crit O_o ) And when adc dies, he ressurect to fight more. But the psychological aspect makes that people will not try to kill ressurected champion even when it is ADC, because he is dead already, so this makes a huge advantage in teamfight.
About his lane bully - not so great, but not so bad :)
Today I've lost hardly sustainfight vs Graves
The only huge problem with yourick is, that when people see this, there is trundle instantpick.
It makes problem, coz trundle is pretty op champion and noone knows it. So better to ban trundle ;d