| Set: | Urza's Saga | 
      
          | Type: | Creature — Horror | 
      
          | Rarity: | Rare | 
      
          | Cost: | {5}{B} | 
        
            Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
{T}: Add {B}{B}{B}{B}. Target opponent gains control of Witch Engine. (Activate only as an instant.)