Phyrexian Arena is a rare Enchantment card from Duel Decks: Phyrexia vs. the Coalition (DDE), collector number 27. Current market price: $5.75, TCGplayer market prices via Scryfall.
At the beginning of your upkeep, you draw a card and lose 1 life.
All Duel Decks: Phyrexia vs. the Coalition cards and prices