I have noticed that, if I pick on the frozen dragon on top of the mountains (snow map), I can get rusted stones to make the ??? weapons, but also sometimes I get a grey dragon item, that depletes life as you have it on inventory.... what the fuck is it??!!?? Is it worth keeping on inventory? After the mission I don't have it there... is it a special item that gives Z in reward???
Also, can you get some Kushal parts there or is it just my imagination???