Niblis of Frost [Commander 2020]

Set: Commander 2020 Type: Creature — Spirit Rarity: Rare Cost: {2}{U}{U} FlyingProwess (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.