This followed a similar retcon as Parallax, originally the new supervillain alias of Hal Jordan, which was revealed to be a parasitic embodiment of fear in the 2004–2005 miniseries Green Lantern: Rebirth.

It has been kept a secret for eons, and resides in the Central Battery on Oa to keep Parallax, the parasitic fear entity also imprisoned there, in check.

First, he unconsciously expels all his feelings of rage from himself, which takes physical form as one of Kyle's childhood nightmares and calls itself Oblivion.

Over time, his powers begin to grow even stronger until Kyle realized he is tapping into the Green Lantern energy left in the sun after Hal Jordan died.

In the "Blackest Night" storyline, Sinestro bonds with the Life Entity and sees the beginning of existence and the origin of the emotional spectrum.

[10] In the "Brightest Day" storyline, which immediately follows Blackest Night, Krona separates Ion from Sodam Yat and forces it to possess one of the Guardians of the Universe.