Zul'jin is a Hunter hero card (rarity: legendary) that belongs to the "Rastakhans Rumble" set, which was released on 04.12.2018 and is one of initially 135 cards. The artist of this card was Alex Horley Orlandelli, who also made 170 other artworks for Hearthstone.
The card costs 10 mana and its card text reads: "Battlecry: Cast all spells you've played this game (targets chosen randomly)."
The flavor text of the card is the following: If you can dodge an axe, you can dodge a ball.
Based on 73 quiz answers, the card is easy to memorize: 96% of them were correct. The question on “Card text” is answered correctly most often (100%), the one on “Name” least often (92%). An answer takes 5.4 seconds on average. In the Pixel Quiz, which shows only the shape and colour of the card, it was recognised correctly 100% of the time.