Surrender to Madness is a Priest spell card (rarity: epic) 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 Maria Trepalina, who also made 21 other artworks for Hearthstone.
The card costs 3 mana and its card text reads: "Destroy 3 of your Mana Crystals. Give all minions in your deck +2/+2."
The flavor text of the card is the following: Never give up, always surrender!
Based on 91 quiz answers, the card is moderately hard to memorize: 89% of them were correct. The question on “Name” is answered correctly most often (97%), the one on “Cost” least often (77%). An answer takes 8.3 seconds on average.