Thrive in the Shadows is a Priest spell card (rarity: rare) that belongs to the "Legacy" set. The artist of this card was Patrik Bjorkstrom, who also made 73 other artworks for Hearthstone.
The card costs 2 mana and its card text reads: "Discover a spell from your deck."
The flavor text of the card is the following: Why would your spells be afraid of the dark? It's easier to nap there.
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