I wrote up a comment reply for another thread so I figured I'd turn it into a showcase. Forged frostbearers were last seen in crucible and are back as a mob in Verisium ore nodes.

~Build pob link~

Maven - 3m 15s vid

T16 residence with breach scarabs - 7m 30s

Some disclaimers.
I have built this for tank more than damage in some places. You could easily drop the southern part of the tree and add it to the minion cluster/second slum lord notable for -2k max phys and a little less ele hit in exchange for 4 million extra dps. However I shield charge into t17 packs so I want to live.

Dps may be variable due to minions, frostbearers like to reposition and the dps is based on all 8 of them shot gunning, they have 60% increased aoe in this build so its mostly the case but against speedy small bosses it might be less than expected.

Stats: (no flasks and no config settings without 100% uptime on)

• DPS: 20 million - 24 million
• EHP 167k - (more if you got a better shield)
• Phys max hit - 15k
• Ele max Hit - 26k (fire is higher)
• Chaos Max. -6k, I use a flask to cap, goes up to 8k if you get the rest of the minion cluster
• 80% block and spell block.

Estimated cost:

A lot of this i made, but that doesn't make it free, I'll try to price check the big stuff

• Cluster - 10-14d
• Flame/flesh - 4d pair
• Other passive jewels - bout 2 div? could use a storm shroud if I can get some avoid shock jewels in there, replace enduring composure and get endurance charges from flask/inexorable
• wand - 5 div, 1 div runecraft
• body armor can be expensive but grab a +1 spectre with base you like and ok prefixes then Jeweler omen for 6 socket, link with black morrigan (2div), eldritch chaos suffixes till ok. est cost: 5 div?
• Boots -1 div (could upgrade to +2 for more money)
• Dragonfangs flight - 8 div (I used a juju till then)
• shield - spam reforge life till ok, or buy for 2d, good shield- priceless
• rings/belt/hat/eye jewels cost can vary with what you got, I'd say 10 div on mine using the pob trade for these items tool

Total: 47 div

Cost to start (+1 chest piece, hat, crap jewels, juju, % life shield, no flame/no flesh, no cluster) 6 div? its gonna be low dps though.

Budget option: Crit harvest enchanted Maata's Teaching (doesn't work in pob add "poe minions have $[5-Weapon Crit chance] to critical strike chance" to config. Drop controlled destruction for increased critical strike damage. Run leash of oblation for spirit offering and get the fearsome force wheel. Get another curse for assassins mark. Unfortunately crit minions have no way to scale beyond that except one mod on the wand so they stop there.

Strengths:

• Throw predator on someone and have the minions kill it while you watch/dodge
• Instant recovery leech and minions gives you insta max hp as long as they're paying attention.
• Clear speed is very good as you have a lot of projectiles and many soul eater minions 
• Lazy as hell, shield charge into pack, drop brand if you like, minions kill everything. Use predator if something needs to die faster. have convocation on Q to keep them with you. I rerolled this because my holy relic starter was giving my hand cramps
• Fairly Linear scaling. Add minion speed/damage, damage goes up.
• Tank minions, max block/spell block, max ele res. Recovery on block. leech
• Not poison minions. No ramp time.
• Shield charge really really fast around the map
• Using supreme ostentation because solving attribute requirements is for fools.

Weaknesses:

• Noisy bois. Frost bearers throw traps when idle, this can be annoying to some or like calming rain to others like me
• Not as cost effective as other minion builds, maybe...

Potential upgrades:

• Shock avoid jewels adding to 100%, replace small cluster with stormshroud, take inexorable.
• Get a better shield, but you have to solve the block chance missing, either with a free prefix on the shield or on the tree.
• Level up. Only lvl 94 at the moment 97 would give 2 million damage from the cluster or the timeless jewel
• Aggressive wand. Not sure how huge the difference is and these are very expensive.