Defiler of Dreams [Dominaria United]

Set: Dominaria United Type: Creature — Phyrexian Sphinx Rarity: Rare Cost: {3}{U}{U} FlyingAs an additional cost to cast blue permanent spells, you may pay 2 life. Those spells cost {U} less to cast if you paid life this way. This effect reduces only the amount of blue mana you pay.Whenever you cast a blue permanent spell, draw a card.