"Brims" Barone, Midway Mobster is a uncommon Legendary Creature — Human Rogue card from Unfinity (UNF), collector number 256. Current market price: $0.14 (foil $0.22), TCGplayer market prices via Scryfall.
When "Brims" Barone, Midway Mobster enters, put a +1/+1 counter on each other creature you control that has a hat. "Brims" Barone, Midway Mobster has menace as long as you're wearing a hat.