... and, of course, that 5 fatigue/turn is considerably less of an issue to mitigate. Extra gem cost on that (probably, anyway), but still...
Also makes the amulets really nice on just about anything sacred (not just assassins) if you've got an earth bless and they've got nothing better to do. Or just anything, if you've got the bless and are willing to make the gem outlay 5d5s

Or some variation of... other stuff. Minor reinvig's fairly common, and even two points of it nearly doubles the amount of skeletons an amulet can put out. Those amulets are really sexy :3