Hopeful Vigil is a common Enchantment card from Wilds of Eldraine (WOE), collector number 17. Current market price: $0.21 (foil $0.23), TCGplayer market prices via Scryfall.
When this enchantment enters, create a 2/2 white Knight creature token with vigilance. When this enchantment is put into a graveyard from the battlefield, scry 2. {2}{W}: Sacrifice this enchantment.