-
I'm not too sure about the rewards, but every chest I've found has had quite a few spinmetal. I think 9 is the most I've found out of a single chest, so keep your eye out for those
-
How the... I get two spinmetal from chests at most! And I have the upgraded drop rate from the Grimoire card of Old Rsuuia being rank II And yeah... I miss farming assassination missions for spinmetal.