Obvious Disclaimer: All things in the guide are subject to change via buffs/nerfs in the official 3.18 patch. If this happens, the build guide/video will be updated accordingly.
Wasn't going to post this on the reddit, but I see a lot of people asking about Minion builds so I figured I'd throw my first fully produced offering into the ring.
Very budget friendly build, and feels significantly more "active" than most minion builds (practically a melee build).
First of all, PoB : https://pobb.in/rM3KNsUVdczG
Video Link : https://www.youtube.com/watch?v=6hOdHhlhsaQ
Build has been tested recently in a SSF fresh start environment (livestreamed and archived on the youtube channel for anyone who cares). 0 to Maps in 6 hours, very comfortable. Unoptimized but higher level clears included in the video.
High defenses (Determination, Molten Shell, etc), High Elemental Resistance (81% Max Res from tree alone), Pantheon + skill tree used to achieve Chill, Shock, and Freeze Immunity.
High gear flexibility. Main weapon is pretty restrictive, but easy to craft with easily made budget options on the way.
Explanation on how to get to level 28 included in video; build starts using Dominating Blow as soon as you acquire it.