Triskaidekaphobia is a rare Enchantment card from Jumpstart 2022 (J22), collector number 479. Current market price: $0.38, TCGplayer market prices via Scryfall.
At the beginning of your upkeep, choose one — • Each player with exactly 13 life loses the game, then each player gains 1 life. • Each player with exactly 13 life loses the game, then each player loses 1 life.