Shadowfiend is a epic Priest minion card that belongs to the "The Grand Tourney" set, which was released on 24.08.2015 and is one of initially 132 cards. The artist of this card was Warren Mahy, who also made 5 other artworks for Hearthstone.
The card costs 2 mana, has 2 attack and 3 health, and its card text reads: "Whenever you draw a card, reduce its Cost by (1)."
The flavor text of the card is the following: Hopes to be promoted to "Shadowfriend" someday.
Based on 7 quiz answers, the card is moderately hard to memorize: 57.14% of them were correct.