Chicago Loop is a rare Legendary Snow Land card from Unknown Event (UNK), collector number RL01. Current market price: $99.00, TCGplayer market prices via Scryfall.
Start your engines! {T}: Add {C}. Pay X speed: Add X mana in any combination of colors. {5}, {T}: Create your choice of a 3/1 green Dinosaur Skeleton creature token with trample, a 2/2 orange Bear token with haste, or a 1/1 white Bird token with flying.