I don't know the answer to this question. They should, of course. But if they do, I'm not seeing much benefit here. That's a really awful way to try to drop saves, IMO. You can only get up to a 15% chance for this save drop, I think. Standing around tossing this stuff hoping for a save drop sounds like a bad time to me. (Do you get any indication when the save drop occurs, BTW? I have this ability, but so far haven't noticed any special indication that that save drop occurred.)