There needs to be a way to remove dungeons from roulette?

[LukaRoselia]

Don't want the ever present threat of getting Amaurot? Don't do the roulette. You only need to run Expert Roulette, which you can roll your face across the keyboard because insanely high item levels, once a day 5 times a week to cap tomestones anyway.

Exactly. You can literally cap in a few hours or less just from spamming expert, it really isn't hard.