Your laptop, or Switch, or whatever broken thing you brought in is now available for pickup
Even if control has changed, the card keeps the same status
8 Thassa's Oracle Hard To Beat Thoracle One of the most consistent win conditions on a single creature, Thassas Oracle is a creature that close games out all on their own
A no-brainer of a first pick
As always, Id suggest upgrading the mana base first, but if you want to spend a few extra bucks you could always add Roaming Throne, to double up on your commanders ability, Helm of the Host, to get more copies of Jon, Phyrexian Obliterator, because that seems like a fun creature to give away, and Sakashima of a Thousand Faces and Sakashima the Impostor, to clone your commander.
Here, my primary concern isn't speculators or collectors but the poor college kid on Reddit trying to put together a Modern deck that ends up with fake Mox Opals off eBay, or the new player who thinks they are getting a good deal on some Modern staples to build their collection off Craigslist and hasn't played enough Magic to realize the cards are fake