Oviya Pashiri, Sage Lifecrafter [Kaladesh] Nixilis They certainly are

They certainly are

Set: Eldritch Moon Type: Legendary Enchantment Rarity: Rare Cost: {2}{B} When Oath of Liliana enters the battlefield

and it has this ability

Whenever you cast an instant or sorcery spell from your library

Oviya Pashiri, Sage Lifecrafter [Kaladesh] Nixilis They certainly areSet: Kaladesh Type: Legendary Creature Human Artificer Rarity: Rare Cost: {G} {2}{G}, {T}: Create a 1 1 colorless Servo artifact creature token. {4}{G}, {T}: Create an X X colorless Construct artifact creature token, where X is the number of creatures you control. "Inspiration is reciprocal: we all have a responsibility to each other to create."