Panetti skill works very well with Invoker very well but also it’s possible to build in aether variant. There’s no specific set, which support aether PRM, so Krieg set is used to provide skill points bonus and valuable stats.
Credit for the similar build posted in AoM era by @ya1.
- build with permanent buffs, DPS for PRM. Craft 1 item with stun, rest with physique.
GRIM TOOLS https://www.grimtools.com/calc/qNY5wolN
Core gear is 4 pieces of Krieg set, Spellgaze for AdctH, green medal and off hand. Decided to use Arcanist Conduit, but amulet with crit damage to PRM is also fine. Other gear:
Weapon - Wrath of Ascendant is BiS, excellent stats and RR proc.
Relic - Agrivix. Racial damage+good proc. Option is Eternity.
Rings - Eternal Haunt+Albrecht. The new aether ring is option too r even Screams of aether. Note that Albrecht is nicely in sync with Agrivix relic, which have chaos damage in the proc. Also ring converts damage from Fabric of Reality.
Pants - Arcane Harmony, excellent for spirit dump builds and also valuable disrupt protection.
So for Arcanist caster you want Devastation as nuke skill, use Callidor Tempest on Aeon to reset Devastation after using it. Also choose Ill Omen for damage reduction over Ravenous Earth. Decided to skip Siphon Souls, because build will become to much piano.
PRM spam+Devastation nuke is the main damage source. Build have multiple RR sources and also nice OA and crit. Casting speed is also caped at 200% in game.
Classical Binder defense - Mirror+Torment combo. Also nice life steal on PRM. Instant damage reduction, Nullification, Bat is standard devotion on casters. Physical resistance isn’t high though.
Build is solid in Crucible, but playing greedy may kill you in Nemesis waves. Against lesser opponents you’ll rarely even need Mirror. Time depend on Reaper and Alex spawning, but it’s fairly stable - from 5:40 to 6:25, around 6 minutes on average. Here’s my fastest run 5:39.