If you have the patience,
is your guy. His harass is ridiculous. However he has some, to fuck all mobility. Although when you land a Q while your enemy is fully stacked, it's pretty sexy to see half their HP drop in one shot.
His ult is probably one of the best utilites in a champ. Wanna escape? Ult. Wanna engage and proc some devastating damage? Ult.
Build him with a caster-hybrid build in mind. Mainly
,
, only a single AP item on him, such as
and the Ult and W scaling will be fucking ridiculous. By then you'll have reached at least 40% cooldown. And let me tell you, as a varus mainer, nothing is more disgusting than dropping an ult to escape, then about 40 seconds later dropping it again because of the CDR %. I often hit max CDR on Varus with just these items, my masteries and a couple of CDR runes.