Mot Coin

From BoardGameGeek:

Mot Coin is an auction-style game that uses dice to bid on a virtual currency that continues to undergo hard forks. You can display as many dice as you like using the limited number of dice you have. The bigger the number, the stronger it is, so of course you can win the auction by setting all the dice you have to 6. However, the dice used for payment remain on the auctioned Mot Coin card and will not be returned until the dice count is reduced to 0. How can I reduce it? Well that's a minor issue. On the contrary, it may even increase. By the way, if you don't get your dice back by the end of the game, you'll be in trouble.