Corrosive Sludge is a neutral minion card (rarity: common) that belongs to the "Kobolds & Catacombs" set, which was released on 07.12.2017 and is one of initially 135 cards. The artist of this card was Luca Zontini, who also made 81 other artworks for Hearthstone.
The card costs 5 mana, has 5 attack and 5 health, and its card text reads: "Battlecry: Destroy your opponent's weapon."
The flavor text of the card is the following: The result of centuries of terrible sanitation.
Based on 105 quiz answers, the card is easy to memorize: 90% of them were correct. The question on “Name” is answered correctly most often (100%), the one on “Health” least often (79%). An answer takes 5.5 seconds on average.