unknown gloves from all booses, unknown gloves are several types. unknown gloves are needed to obtain elixirs. (as stupm on the land). You have to read description so that you know where to use them. Gloves must be in bag. If you are lucky, you can find a non dungeon elix.
they have rate too, so sometimes u get nothing from stump or haystack, blame on this bad rate. -U can find stumps near boss Jin Long or Bloodwolf in ZZ. -Haystack near 1st village Jinan or area near 3rd village where u find Shenmo boss