Wild Evocation is a rare Enchantment card from Magic 2011 (M11), collector number 160. Current market price: $1.25 (foil $4.05), TCGplayer market prices via Scryfall.
At the beginning of each player's upkeep, that player reveals a card at random from their hand. If it's a land card, the player puts it onto the battlefield. Otherwise, the player casts it without paying its mana cost if able.