So, I'm not certain whether this is localization, or a bug, but I'm sure you guys can sort it out.

The un-erasable heavy effect applied by the 1st boss in Stone Vigil (Hard) is labeled as "Ingenuity", and has a help text that appears to be intended for crafting.

Note: This screenshot was taken prior to the latest hotfix. If you guys already fixed this, I apologize for the late notice.