Niblis of Frost [Eldritch Moon Prerelease Promos]Set: Eldritch Moon Prerelease Promos Type: Creature Spirit Rarity: Rare Cost: {2}{U}{U} Flying Prowess (Whenever you cast a noncreature spell, this creature gets +1 +1 until end of turn.) Whenever you cast an instant or sorcery spell, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.