The White Lantern Corps appeared near the end of the Blackest Night, after Thaal Sinestro, who had absorbed the Entity of Life, had the Entity removed from him. No sooner had this happened, then Hal Jordan absorbed it himself, and spread its power over a number of earth's super heroes, some of them Black Lanterns, thus resurrecting them (This included Kid Flash, Superman, Superboy, Green Arrow, Donna Troy, Ice, and Animal Man, as Barry Allen, Hal Jordan, and Wonder Woman, had all become other Lanterns before hand).
With their combined powers, they defeated the Herald of Death, Black Hand, thus allowing the Indigo Tribe to take custody of him, and defeated Nekron, Lord of the Unliving. The White Lantern Corps disbanded soon after this, as the Life Entity vanished.
Powers and abilities
Each White Lantern possesses a power ring that lets the user create white energy constructs powered by life itself. The original wielder of the Entity, Sinestro, showed the ability to eradicate swarms of Black Lanterns effortlessly and is described as "godlike". He also appeared to be immortal, able to survive a seemingly fatal wound and recovering within minutes. When Hal Jordan wielded the power, he demonstrated the ability to create additional rings restoring heroes claimed by Nekron to life. When Deadman possessed a white ring, he demonstrated the ability to restore life to a bird that had died falling out of its nest. He was also able to transform the area devastated by Prometheus into a lush forest. However, this seems to be the work of the Entity as Deadman has so far been unable to access the ring's powers himself.
Similar to black rings, white rings start with no charge. As the wearer embraces life again the ring rises in power level. What happens when a white ring reaches one hundred percent charge remains unknown. The only thing known is that the ring as it charged itself gave Deadman the sensation that someone would die. As the ring reached 100%, it forced Deadman to meet the Hawks where the ring tasked them a second labor, however when Carter and Shiera refused to obey, both lovers were apparently reduced to white dust in the process.
