Pop the 3-proc passive then use the movement speed to run out. The electrocute proc adds a lot of damage. Ways to proc passive; e->q->auto, e->q->auto, q->e->q, q->q->e, e->q->q, auto->e->q. From easiest proc to situational procs.

Teleport for hard harass lanes. Ultimate hunter can be replaced with other choices, celerity with transcendence, and sorcery with resolve. If resolve route, take bone plating and chrysalis.

There is no definite order. Lost chapter for most optimal. Sheen is a good pickup early. Proto-belt start is still optimal, just not recommended. Items are made to stack damage into your proc combo and your ulti. Items are pretty self explanatory.