Master of the Veil is a uncommon Creature — Human Wizard card from Legions (LGN), collector number 43. Current market price: $0.17 (foil $1.80), TCGplayer market prices via Scryfall.
Morph {2}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turned face up, you may turn target creature with a morph ability face down.