haha yup, and used some for the pack opening. That's where most of the value came from!
Actually think this was the custom one: 100 DEC + SERPENT OF ELD regular (1BCX)
It's from the tank awards festival. Since the spring training rewards are on wax it's probably not accounted for in the stats? Did get a lot of good nft's there too, so much of the luck doesn't really show here ;-)