The "Wall St. Banker" class of NFT Mintopoly Cards have special functionality on the moon. They help facilitate exchange trades to earn passive resources! Owner can apply their bankers onto any resource and split a 5% daily commission on all of the trades between that resource and $MM. For example, if 20 players have applied a banker card on the Water <> $MM pairing and 100,000 water was purchased with $MM today, each owner would receive 250 water as a commission [100,000 water sold x 5% commission / 20 bankers]. Note that these resources are generated in-game as a small inflationary measure, they are not deducted from the buyer or seller.