Facet 2 unless cleave (facet 1) is the order of the day.
Ideal scenario is from your teams backline drop ulti (aghs) onto enemy backline follow up with pit between the two points to make team fights awful for opponents.
throw up your debuffs (items/auras) firestorm and remain in the thick of it slapping hard with atrophy stacks :)
60% winrate and im terrible must be doing something right.