Bane of Doom is a Warlock spell card (rarity: epic) that belongs to the "Legacy" set. The artist of this card was Raymond Swanland, who also made 33 other artworks for Hearthstone.
The card costs 5 mana and its card text reads: "Deal 3 damage to a character. If it dies, summon a random Demon."
The flavor text of the card is the following: My advice to you is to avoid Doom, if possible.
Based on 23 quiz answers, the card is easy to memorize: 100% of them were correct. Every question type has the same hit rate: 100%. An answer takes 6.6 seconds on average.