Summoning
From DALpedia
Summoning magic is the skill of making monsters and other creatures appear from mostly nowhere. The most common users of summoning magic are the Blue Minotaur. How they achieve summoning, is they use magic to create a creature by copping the patterns of its aura, and storing it into an enchanted sapphire. When they desire they can create a monster by creating it by combining there magic and the aura coding. This can be done without a sapphire, but seeing that the Blue Minotaur consists of mostly average humans who are taught the skill of summoning, the average memory of a human couldn't memorize the dreadfully long patterns, however a very small few can memorize some, such as The Elder of the Blue Minotaur.