Use this build in-game
Build ID: 812131 - copy and import it in the Deadlock shop
(All credit goes to deadlocked.gg I just simplified and modified their existing published build for Doorman because my brain is too small to understand complex things. Please check out their build as well.) This build simply utilizes a lot of items which make Doorman strong such as: being able to escape with 1 HP, double ulting, bell spam, stuns, and spirit damage buffs. In an easy-to-understand format. Publishing for the one Ivy player who said they'd use it, but all are welcome to try and further modify.
Recommended ability leveling order for this build