Grail is the daughter of the New God Darkseid and the Amazon Myrina, prophesied to cause great destruction at the behest of the Anti-Monitor. She was eventually captured by A.R.G.U.S. and held prisoner in a massive vault with her father omega symbol on the doors, but she subsequent escape and became an enemy of Wonder Woman and the Justice League.
Grail was created by Geoff Johns and Jason Fabok, first appearing in Justice League (Volume 2) #40 (2015).
