to go further into this, the thing about wither is that most people have the panic button (95% of people) called Flash. In most cases, flash is useless with wither cause youll flash and still slowed enough to let the laner getting the gank to catch up to you and wail on you. If the laner has any cc, they will damage you a ton or kill you.
so. extremely succesful ganks, fast jungle clear if necessary, combined with now better scaling with jungle Q, aoe debuff to kill, aoe damage with ult... yeah. You get the picture now.
Some people say I have no life. To those people: up up down down left right left right ;BA select start! Ding! 30 lives!!