I actually had no idea there were markets for this. I have a huge box of cards from the mid 1990s here. I bought them from an actual shop in Cambridge, UK or traded them in person. I haven't even thought about the game since I stopped playing it in 2000 or so.
Edit: holy shit the second hand prices on ebay. I'm going to spend the weekend on this! I even have a couple of sealed decks somewhere. These: https://www.ebay.co.uk/itm/334960782977
Edit: holy shit the second hand prices on ebay. I'm going to spend the weekend on this! I even have a couple of sealed decks somewhere. These: https://www.ebay.co.uk/itm/334960782977