When they discovered a new member within the planet Azeroth, they descended directly upon Azeroth and established a series of Titan Facilities to help the still-infant Elune grow into an adult Titan sooner.
But the Titans had never imagined that the Old Gods would appear along the way and infect Azeroth, this incubation chamber. When the Pantheon returned to the planet Azeroth, they discovered that the laboratory had been severely infected by the Old Gods. After a fierce war, the Pantheon barely defeated the Old Gods' army, which was embroiled in infighting. The chaotic elementals were banished to the Elemental Plane, while the Old Gods were sealed deep beneath the planet's surface.
Patrick still considered the Titans relatively benevolent deities. In the very beginning, Azeroth had already harbored life, and those ancient life-forms were insects and trolls. If the Titans had wanted to stabilize this world and keep Elune from being influenced by any life-form, they could simply have wiped out all life on Azeroth. Destroying every living thing in the world would have been far too easy for the Titans, but for those natives, it would have been the end of the world.
First, Xavius could achieve his goal of controlling all of Azeroth by controlling the green dragon queen Ysera's Emerald Dream. Second, Malygos, the Aspect of the Blue, could also carry out a great purge on Azeroth by controlling the ley line system. Third, the Aspect of the Black likewise needed only to channel a single spell, Cataclysm, to destroy the world...
Destroying the world would have been child's play for the Dragon Aspects blessed by the Titans, and surely even easier for their creators, the Titans. Moreover, as experimenters, it was perfectly reasonable for them to reduce all variables affecting the experimental results other than the