The long-dead race known as the Alfs had the natural ability to summon and control magical beast of great power which they used in combat and also for defense of their cities and towns should they come under attack from Monster Hordes or Boreal swarms. Since their disappearance from the world of Eifel, there have been no more than 5 natural born summoners. These have been spread out over 3000 years of Eiflan history. No other race but the Eiflans have ever had a member born as a summoner.