There's a dark green bubble around the Arcanist during the ramp up phase. Don't attack the bubble.
Once the bubble pops, a dark green circle appears on the ground around the Arcanist. Don't stand in the circle.
Also 48k tick is probably from Emperor Arcanist. Don't bother attacking them unless you have Corrosive/Onslaught and time your burst perfectly when they are low health.
Edited by Kaelthorn_Nightbloom on October 11, 2023 11:35PM
In addition to what Skara said, it's pretty easy to lock the Arcanist down as soon as the bubble pops. Stun + immobilize, and pour damage in. The Arcanist will likely be on the offensive when the bubble pops to take advantage of the damage, and you should be able to tear through them pretty quickly.
i have my main house (grand topal hideaway) listed in the housing tours, it has multiple target dummies, scribing altar, and grandmaster stations (in progress being filled out), as well as almost every antiquity furnishing on display to preview them