One Shotting Ubers with Minion Pact - 41k flat damage support

This is a variant of the Minion Pact chieftain that I've been working on. It's a meme version that specializes in one-shotting uber bosses without phases.

PoB: https://pobb.in/g7rjNiKlG5wd

Build stats overview:

• 2.8 billion burst damage
• ~60 div invested, for just damage you only need ~30 div
• 10k max phys / 71k max ele hit
• Can only do damage once per portal

Minion Pact is a new exceptional support gem that sacrifices a damageable minion to grant a spell flat physical damage based on the health of the sacrificed minion. The amount of flat physical you can get from this gem is absurdly high - in this build, we get about 41k flat physical damage. For perspective, a 20k mana archmage build only gets ~3k flat lightning damage, and a 20k ES energy blade/spellblade/battlemage build only gets ~9k flat lightning damage.

Through testing, I've discovered that repeating spells via spell echo or unleash does not sacrifice additional minions. The flat damage bonus from minion pact is granted to all repeats/additional casts as long as the first cast sacrifices. This makes these gems quite efficient for a one shot build, where we focus on casting once with a high health minion.

For this showcase, I'm using a Perfect Meatsack minion with 1.3 million base HP. This high HP value is achieved using a level 21 spectre gem socketed in +2 minion/+1 all boots, alongside Empower, Minion Life, and Companionship. Companionship is another new exceptional support that grants supported minions more maximum life if they are your only summoned minion. This is super broken for a one shot build - when boosted to level 6 in these corrupted boots, it ends up giving our minion 80% more life and 20% increased life.

I picked Frost Bomb of Forthcoming as the damage skill because my tree was already close to duration clusters. This skill hits super hard with a little bit of duration scaling, although you have to learn timings for when to cast for each uber boss. The cooldown is not an issue since we are one shotting bosses anyway.

The rest of the build scaling is the same as the Blade Vortex variant I previously posted, with the notable exception that we go crit because Elemental Overload is inconsistent for a one shot build. We still use warcries, dual nebulis, and emnity's embrace to solve our % increased damage, penetration, and phys as extra scaling.

Addendum for people who want to play the well-rounded Blade Vortex variant of the build (20-60 div). The old post showcasing mapping and explaining mechanics can be found here: https://www.reddit.com/r/PathOfExileBuilds/comments/1rrbzec/minion_pact_blade_vortex_chieftain_30m_dps_breach/.

For Blade Vortex, I have an updated PoB I recommend following: https://pobb.in/pnpyZB4FJVF6

The main change from the previous version is the addition of Companionship Support into the boots. After some discussion with u/FancyWeakness4150, we discovered that Blade Vortex will retain the bonus from Minion Pact as long as the first stack of BV is created while sacrificing a minion. You can recast your BV skill without sacrificing minions afterwards to refresh and increase stacks. This means that the optimal playstyle is to raise exactly 1 Dark Marionette with Companionship support to get an extra 80% damage bonus.

You can technically use Perfect Meatsack instead of Dark Marionette as your sacrifice target (netting 140% more damage) but you will lose all your damage if you ever let your BV stacks expire. Not worth it, IMO, unless you are running very specific content or are very good at refreshing stacks. The best application for meatsacks I can think of is using them in deep delve where the loot drop patterns are predictable and you can zone in and out after each node.