That’s just one example (Bruce Grey + Accused, and Emperor Blackheart + Zeus being other examples) of how the flavor text is not reflected in the rules.
Flavor text has nothing to do with any gameplay elements whatsoever.
From the Complete Game Rules: (might not be in all pack variants)
Flavor text (fiction found on the backs of cards) has no bearing on game play; it is there merely to tell part of the game’s story. Reference a card’s ability text to see what it can do in the game.