Explore Un'Goro is a Warrior spell card (rarity: epic) that belongs to the "Journey to Un'Goro" set, which was released on 06.04.2017 and is one of initially 135 cards. The artist of this card was Jerry Mascho, who also made 16 other artworks for Hearthstone.
The card costs 2 mana and its card text reads: "Replace your deck with copies of ‘Discover a card.’"
The flavor text of the card is the following: It turns out cards DO grow on trees!
Based on 102 quiz answers, the card is moderately hard to memorize: 89% of them were correct. The question on “Card text” is answered correctly most often (94%), the one on “Cost” least often (80%). An answer takes 5.8 seconds on average. In the Pixel Quiz, which shows only the shape and colour of the card, it was recognised correctly 71% of the time.