| Set: | Ice Age | 
      
          | Type: | Artifact | 
      
          | Rarity: | Rare | 
      
          | Cost: | {4} | 
        
            {2}, {T}, Sacrifice Jester's Cap: Search target player's library for three cards and exile them. Then that player shuffles.
        
        
            "Know your foes' strengths as well as their weaknesses."
—Arcum Dagsson, Soldevi Machinist