They're skills for the Samurai & Ninja classes of other versions of uo mostly found on uoml shards atm. They are skills that would 'auto-check' in combat & gain - similar to the way Anatomy is now gaining here on Obs.
Isn't there another on the list now, called Spellweaving (or something to that effect) I dunno if this has something to do with our necros but again I think it is something we can't use...
Anyways all of which require the Character classes we don't have here - not saying they couldn't work here though - staff seem quite smart and could probably could throw it in the mix if they could be bothered. If it were me, I'd just delete'em
