Spam ur W continously to get the tear of goddess passive. This means you'll gain 4 mana and 1 hp per 7 seconds. Your aiming to get 5000 mana so that you can get 1250 hp from the passive and 150 AP from the archangels staff.

Use your Q, Ulti and Ghost to approch the enemy. You'll get around 750 movement speed for 10 seconds, more than enough time to kill a couple of *****es. When u aproch use fling then slow and when they start to run away, stand in front of them and mimic their moves because you have 750 movement speed and poison. When someone is chasing you then when you see they've given up, use this combo imediatly for a diffinite rape.