Mastercard Inc. is making it easier for banks to offer cryptocurrency rewards on their credit and debit cards as part of the payment network’s recent embrace of digital currencies. To pull it off, Mastercard has inked a deal with Bakkt (NYSE: BKKT US), the cryptocurrencies firm that spun off from Intercontinental Exchange earlier this year, according to a statement Monday. As part of the changes, Mastercard will also make it easier for consumers to spend the cryptocurrency rewards they earn at the millions of retailers on the firm’s network. Bakkt shares closed 234% higher at $30,60.