Mindstorm Crown is a uncommon Artifact card from Mirrodin (MRD), collector number 207. Current market price: $0.19 (foil $0.43), TCGplayer market prices via Scryfall.
At the beginning of your upkeep, draw a card if you had no cards in hand at the beginning of this turn. If you had a card in hand, this artifact deals 1 damage to you.