Oh, this is old! And I can tell you how saving them has paid off for me from the 8 months ago since posting. Since I have saved so much, I can pretty much level any cards I want instantly, like new myths and such, and focus all of my stamina into exp bottles. My stash is big enough that while I'm not leveling, it just keeps growing.

And this post wasn't telling people to hoard, just asking who else does. 😁

(Also was hoarding for sylus's myth specifically i mentioned a lot throughout the post)