Hey exiles it's Remi here!
So I've been playing this particular build for the past few days, inspired by Akane's MoM Miner and Bubu's CoC Fireball & Creeping Frost setup. This build is kinda a hybrid of two of these builds. It utilize an underrated 1c unique gloves Painseeker and Secrets of Suffering (SoS) to inflict maximum effect of brittle on our enemies, effectively capping our crit to 100%.

My current PoB (still under further testing, roughly 20ex invested) - https://pastebin.com/QWtQ3FRS

Interaction with Painseeker & The Interrogator (Secrets of Suffering)
Painseeker has a downside of "crits do not inherently appply ailments". What this means is that crits no longer have 100% chance to apply ailments, forcing you to grab stats such as #% chance to freeze. But this downside is overwritten by SoS. Because painseeker is not "crits cannit apply ailments", and SoS applies the ailments without a #% chance. So in short, we basically ignored the downside of Painseeker and apply the ailment effect as if we are dealing triple damage (assuming max rolled).

Notable important stuff in the build
In order to reach 15% brittle effect on bosses like Sirus, we want to have these:
- Anomalous Elemental Penetration
- Deep Chill (1 from large, 1 from medium. A total of 2 is needed)
- Astonishing Affliction
These notables are very important to reach max brittle effect, you can notice a huge damage difference by just getting a 2c jewel. It allows us to apply an effect of
- 10-20% Scorched (enemies have reduce elemental resis)
- 15% Brittle (enemies take increased flat crit)
- 20% Sapped (enemies deal less damage)
Besides, there are some alt quality gems that are also fairly important throughout the build (probably the most expensive part of the build), such as Divergent Arcane Cloak for 20% buff effect, further increased by enhance 4 to reach 44% buff effect, it provides us A LOT of damage when we have arcane cloak up.

Playstyle
This build is quite active in general, it's not a 1 button build and it definitely needs setup to do proper damage on bosses. Besides, minefield is a must on this setup. So if you are someone that stress free builds, dislike minefield or hate mines in general, this build is NOT for you.
Sigil of Power, Sniper's Mark (brand) and Flame wall is a must in my opinion. Vortex + Archmage is optional but I felt like it is quite important to keep up the indigon mana spent recently once your arcane cloak buff ran out.

Map mods and Expedition Mods
This build could do all map mods, even reduced flask charges gained. There's no hard banned map mods, but there are certainly some that could really annoy you such as temp chains, no regen and etc.
As for Expedition Mods, this build could not do "monsters cannot take crit damage". This is the only hard banned mod for this build. You can take either lightning immune OR cold immune, both couldn't coexist else you will deal 0 damage. Rest of the immune mods can coexist. There are certainly other mods that can be very dangerous for the build, so don't go haywire on picking remnants mod, build does not has an aurastacker level of defense.

Final Note
This build has great damage and decent survivability in general that could do all content relatively well with respectable budget. The build currently is still under further testings and investigations for more improvements, and I will share my results later on another date if there are significant changes on the build.