Ashling's Prerogative is a rare Enchantment card from Lorwyn (LRW), collector number 150. Current market price: $0.63 (foil $9.50), TCGplayer market prices via Scryfall.
As this enchantment enters, choose odd or even. (Zero is even.) Each creature with mana value of the chosen quality has haste. Each creature without mana value of the chosen quality enters tapped.