What are the abilities of Retriever Phoenix?
user
Flying, haste\nWhen Retriever Phoenix enters, if you cast it, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)\nAs long as Retriever Phoenix is in your graveyard, if you would learn, you may instead return Retriever Phoenix to the battlefield.
assistant