Open the Cages is a Hunter spell card (rarity: common) that belongs to the "Madness at the Darkmoon Faire" set, which was released on 17.11.2020 and is one of initially 135 cards. The artist of this card was Arthur Bozonnet, who also made 110 other artworks for Hearthstone.
The card costs 2 mana and its card text reads: "Secret: When your turn starts, if you control two minions, summon an Animal Companion."
The flavor text of the card is the following: "Coming out of my cage, and I'm dead by turn nine..."
Based on 52 quiz answers, the card is easy to memorize: 94% of them were correct. The question on “Card text” is answered correctly most often (100%), the one on “Cost” least often (89%). An answer takes 6.0 seconds on average.