When elves ruled the world, there was little that opposed them. Utilizing the magicks of the First Gate, they were able to defeat even the dragons of IIo. So that when the humes and other Tauren races rose up against them, they knew that the elves must be wiped off the planet or else they would never be defeated. Thus, the Seven Archmagi of the humes channeled the magicks of their entire race into a Seal that would contain the First Gate and force all elves to flee to Lysia or be cut off from magick forever.