Quicksilver Dagger is a uncommon Enchantment — Aura card from Dominaria Remastered (DMR), collector number 195. Current market price: $0.22 (foil $0.19), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature has "{T}: This creature deals 1 damage to target player or planeswalker. You draw a card."