the hot tub creates a 22 hour stealth buff unintentionally on a character every time a hot tub is used,
it makes it so shadowsmite hits 98% more damage (while stealthed-but not stealthed, just bugged)
and also adds 30% skill damage from the 10 second stack from running shadowplay and actually stealthing
the guards even say, what are those footsteps when people walk past them with it, and bloomfangs appear
stealthed too. the game legit thinks people are stealthed when they arent at all. its a 22 hour stealth buff pretty much to boost damage tremendously, because the hot tub gives the stealth buff for some odd reason on the 22 hour ouch, hot debuff!