Blind Auction

Each player may pay any amount of life without going below one. For each life lost, they create a colorless Gold artifact token with "Sacrifice this artifact: Add one mana of any color to your mana pool." Each player exiles the top 3 cards face down then each card is revealed one by one going clockwise, which players then bid on it using gold tokens till there are no more cards. Player who bids the highest puts that card in their hand. If there's no bids, the card will default to it's owner.