At the same time as the birth of Diana to Hippolyta, the Amazonian assassin Myrina gave birth to the daughter of Darkseid in secret, aided by Penelope and watched by the oracle Menalippe. Upon the birth of the young girl, Grail was defended by her mother from Penelope, who heard of the prophecy from Menalippe of the destruction that would be caused by the girl when she grew. After murdering Menalippe, Myrina fled Themyscira, bringing her daughter with her as the first Amazons to leave the island.
Decades later, Grail allied with the Anti-Monitor and aided him in declaring war on her father.
Grail finally arrived to Earth through a dimensional portal and was quick to ravage the Justice League, nearly killing them all until another Amazon arrived to fight her but proved to be no match for her, easily defeating her. She also defeated Green Lantern and Power Ring, and used the energy of the latter's ring summon the Anti-Monitor to their world.
She welcomed the destroyer to their universe before re engaging in battle against Wonder Woman, a fight that was interrupted by Metron who arrived to teleport the Justice League away from her and the Anti-God. She then proceeded to summon her father to their world, and once he and his armies arrived, both her and the Anti-Monitor charged against the forces of Apokolips.
The war started, she fought and blinded her brother until Diana once again clashed against her, trading blows until her father summoned the Black Racer to aid him, only to be taken and controlled by the Anti-Monitor who turned the weapon against him and ultimately destroyed Darkseid for good.
After her father's death Grail witnessed the Anti-Monitor slowly expel the Anti-Life Equation from himself in order to become Mobius again, to which she seized the opportunity to take the Equation for herself, claiming death is too good for Darkseid. She began searching for the first man to step foot in Themyscira, Steve Trevor, and dragged him to her presence in order to fuse him with the Anti-Life Equation, transforming him into her mind slave.
Returning to the battlefield, she commanded Steve to destroy Mobius, ending the life of the Anti-God before commanding Steve to proceed and destroy the Justice League. The entire Green Lantern Corps tried and failed to subdue her, overpowering her enemies before turning her attention towards the newborn child of Superwoman, slaying his mother and taking the child to herself in order to systematically steal the powers of all the surrounding Gods and retrieve the Anti-Life Equation so her father could be reborn again through the child.
Her revived father now as her obedient pawn, the new Darkseid was about to destroy the Justice League until the arrival of the Female Furies who assaulted Grail alongside the rest of the League in a final attempt to stop her. Restrained by Diana and her mother, Myrina requested her evil daughter to open her eyes to ease her rage, to which Grail reluctantly did, firing her beams through her mother to strike Darkseid, separating him from the Equation and returning him to his infant state.
Now in an isolated cave, Grail holds her infant father in her arms, promising to raise and love him as her mother did her, stating that now they both have a second chance.
Apokoliptian Amazon Fatherbox Side Sweeped Hair