| Set: | The Brothers' War | 
      
          | Type: | Creature — Rat | 
      
          | Rarity: | Uncommon | 
      
          | Cost: | {B} | 
        
            When Gnawing Vermin enters the battlefield, target player mills two cards.
When Gnawing Vermin dies, target creature you don't control gets -1/-1 until end of turn.
        
        
            “Everyone warns about the sand and the food, but the rats are worse than both put together!”
—Samwell, letter to his family