This is one of the good dungeons.
For Xander specifically. Not necessarily for anybody else.
Psychic dungeons are super variable, is the thing. If the victims are all screaming their heads off, or he gets too good an idea of what they're actually going through, it'll send his stomach churning, give him that horrible tingly feeling like his skin's trying to fall off. Worse than the physical dungeons, sometimes. (Not typically. But there was that one last year, with the slaughterhouse theming and the invisible cleavers... ugh.) But he's got no idea what's going on with the catatonic civilians in this place, nor with the betentacled fuckers running around its weirdly organic layout, and he's thrilled about it. Not knowing means he can't feel it. Not knowing means he doesn't start scratching at himself until he hurts like he knows he should. Not knowing means he's practically skipping through the tulips as he severs tentacles like mown grass.
It's a good thing he finds the boss room as quickly as he does, before he starts feeling bad for the fuckers.
Today's boss... a giant floating brain, which feels a bit on-the-nose if you ask him. It seizes him in an invisible telekinetic hand and starts applying pressure to his mind and body.
And Xander thinks to himself, you know what, I've got enough slack to get this over with quick.
He walks out to the entrance, core under one arm, most of him spattered with cooling grey matter. "Good to go when you are," he drawls, setting it down before retreating into the little curtained area very, very thoroughly quarantined from the victims.