Political event
Over the prior millennia, the Guardians gather the cosmos’ mystic energy into the Starheart, and create the Central Power Battery. With the Battery they collect and store pure “willpower” from throughout the universe, green on the “emotional spectrum”, and use it to contain a fear-parasite, yellow-hued, called Parallax; thus embedding an impurity in the green energy.
The Guardians wage war against the chaotic, irrational forces of magic especially necomantic magic. The final battle of this campaign is against the demon lords of the Empire of Tears, whom the Guardians entomb deep within the demon throne world of Ysmault. The Guardians then collect all the magic gathered in the war, forging it into an artifact they hide at the center of a star and call it the Starheart. A fragment of the Starheart breaks away and drifts across the universe for eons, crashing to Earth 2,000 BC to be shaped first into a lamp and then a lantern found by engineer Alan Scott and used to become the first human hero known as Green Lantern.