Stormwing Entity - Promo Pack (PM21) from Core Set 2021, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Caroline Gariba
• Card Text:
  This spell costs 2U less to cast if you've cast an instant or sorcery spell this turn.
  Flying
  Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
  When Stormwing Entity enters the battlefield, scry 2.