Having a great idea for simming, but having it rendered less awesome by the reality of things.
-The lot on the summit of Komorebi does not allow for basements, so your hidden chamber doesn't even appear.
https://hosting.photobucket.com/images/f116/cireking213/12_07_20_8_22_09_AM.png?width=1920&height=1080&fit=bounds
-You improvise, but find Sims cannot copypasto or burgliate the provided rare wands.
-Sims can't copypasto Familiar orbs
-Sim can only burgiliate once per a certain time span.
I can still have my sims play out the challenge of climbing Mt. Komorebi in order to have earlier access to spells and objects they need, but not like I wanted it. I also found that they can basically fly up the mountain on broomstick and it's not necessary to climb it at all. :D