PoE 3.12 Heist, 3.20 Sanctum Lightning, Sanctum builds

This was my build for Sanctum, but reading through the patch notes I see no HUGE reason why this build shouldn't work well in 3.21 (RIP arcane surge, as well as regain mana after every 5th cast and 3% of mana as es masteries). This build focuses on a very spicy interaction that I'm almost certain has been used before, but I can't seem to find any builds using it on PoE ninja. In short, we get our mana costs as high as possible using archmage, and then we take 400% of that mana cost as physical damage with scold's bridle. The hit damage for this is going to be pretty high (6-8k) so we mitigate

Inscriptions to save a skill node (10+ Div) - Inscription of Glancing Blows - Inscription of Pain Attunement Smite - Anon 20% duration - Phan 5% attack/cast speed Leap Slam - Phantasmal 10% speed Faster Attacks - Default 10% speed Tempest Shield - Div for +2% spell block Wrath - Div for 4% reservation efficiency Petrified Blood - Default 5% addtl life loss prevented Hatred - Anon for 10% freeze/chill duration Righteous Fire - Div for 20% incr spell damage Blood and Sand - Projectile Speed Crit Damage - Default for 10% Crit Multi Spell Echo - Default 1% damage - Anom cast

I commented in a thread about my CI Poison Spark build the other day, and there seemed to be some interest about my approach to what is quite a popular build this league, so I thought I'd make a post. My philosophy is that I want to hit the DOT cap, with good Wither uptime, and after that I focus on hit damage and defenses, namely in the amount of a high ES pool. At 10.31 casts per second (11.27 with Smite active), the build is extremely mobile and generally hits the DOT cap in 2-3 seconds, depending on the arena. I eschew Awakened Deadly Ailments and Awakened Unbound Ailments in favor of A

Inscriptions to save a skill node (10+ Div) - Inscription of Glancing Blows - Inscription of Pain Attunement Smite - Anon 20% duration - Phan 5% attack/cast speed Leap Slam - Phantasmal 10% speed Faster Attacks - Default 10% speed Tempest Shield - Div for +2% spell block Wrath - Div for 4% reservation efficiency Petrified Blood - Default 5% addtl life loss prevented Hatred - Anon for 10% freeze/chill duration Righteous Fire - Div for 20% incr spell damage Blood and Sand - Projectile Speed Crit Damage - Default for 10% Crit Multi Spell Echo - Default 1% damage - Anom cast