osssni, thank you for the information!
I checked PsychePsyche's info and looks like they got Winter Ashes already. At least it is marked as double in trades and not listed in their trade thread (or did I miss it somehow?).
Though I would be happy to get such a trade, I'm not looking exactly for a diamond creature. Even not all of the Limited Shop creatures are diamond
Just a trade close to fair with less rare creatures would be fine.