SPAC Mudrick Acquisition Corp. II (MUDS), which is in a deal to take Topps public, rose 8.6% after Topps announced it would begin selling baseball card non-fungible tokens or NFTs on April 20 through the WAX blockchain.Topps is selling 50,000 standard packs with 6 cards each for for $5 and 24,090 premium packs containing 45 cards each for $100, according to its website.It was reported last week that legendary NFL quaterback Tom Brady is starting NFT platform called Autograph.