Bitterblossom is a mythic Kindred Enchantment — Faerie card from Double Masters 2022 (2X2), collector number 69. Current market price: $32.36 (foil $36.06), TCGplayer market prices via Scryfall.
At the beginning of your upkeep, you lose 1 life and create a 1/1 black Faerie Rogue creature token with flying.