After I've posted about Evasion and Armour Based Attack Builds, I thought I would theorize about Armour Based Spellcasters too. I've taken the Standard Inquisitor Spellcaster and worked on its defensive properties a bit - this recycles mostly defensive concepts from the previous posts but I feel like its worth showcasing nonetheless.

https://pobb.in/PKd-X3fOqHNU

This is a BV Inquisitor leveraging Phys taken as Element, perma Utility Flask Uptime and some moderate Armour Investment to achieve 0,15 phys Damage Taken multiplier vs a 10k phys hit and under 0.2 damage taken multiplier for 10k ele hits (0,15 for fire). This makes it capable of tanking a 10k damage phys slam with triple added as ele.

We use the FoTM flask setup with ToH, Topaz and Ruby, this time adding a Granite Flask+Determination and Armour on every gear slot to achieve 30k armour. In total, we convert over 50% of Damage taken as Elemental. This makes the armour formula far more efficient since taking a lower phys hit makes the phys mitigation result from the same amount of armour way higher.

We also leverage the reworked MoM, allowing us to split the Damage nicely between our 4500 Life and 2000 ES, both recovered by a rate of 1000 per second after accounting for RF debuff. We do not worry about Mana because we take Eldritch Battery, allowing us to skip inspiration for a big more multiplier. Finally, this build also uses the forgotten Frost Shield (maybe forgotten because it got released alongside Heist? :D) to build a massive 3.6k Damage pseudo "60% MoM" Bubble protecting this melee style build from long range damage.

Offensively, this uses vulconus and Yoke of Suffering at 50% shock effect to achieve significant Damage, together with power charge scaling and inner conviction. Right now it sits at around 11 Mil DPS with just a 21 Blade Vortex - if you started adding some alt quals+enhance 3 to some of the utility gems, doing some awakened gems in the main link, this could break into 20 mil territory I suppose.

To summarize, we throw a couple of FoTM mechanics together with tried and true mechanics, add some Efficient Offensive scaling and Create a Tanky Caster - we might want to optimize QoL a bit though, probably replacing the Wise Oak with a Quicksilver Flask with t1 all res suffix for mapping and maybe getting withering step for some Movement Speed.