Category 1 Get Lifesteal when needed, sell Extra Health/Rapid/Extra charge later as needed.
Category 2 sell extra health for armors as needed, healbane if bullet armor isn't needed, or skip locket for healbane if all three needed.
Category 3 No rush for 3k spirit, improved reach on rabbit, Duration/CD on Clone or rabbit if preffered, Reach for Rabbit, sell extra charge if needed.