- Valkyrie was confirmed at San Diego Comic-Con last July 14, 2012.
- Valkyrie was released on November 30, 2012 as the reward for completing Special Operation 5.
- The 's is based on Valkyrie's passive. A free link was provided during the first Anniversary celebration of the game.
- Valkyrie has two themed weapows, the and
- As stated on Special Operations - The Dark World: Mission 2 - Guiding Light, Valkyrie's white horse is called Aragorn.
- Valkyrie is a current Member of the Lady Liberators, along with Thundra and Invisible Woman. Former Members include: Black Widow, Medusa, Scarlet Witch, Wasp, "Valkyrie" (Amora/Enchantress), Storm, Tigra, Hellcat and Spider-Woman
- In Norse mythology, a valkyrie (from Old Norse valkyrja "chooser of the slain") is one of a host of female figures who decide which soldiers die in battle and which live. The valkyries would ride horses to battlefields to select warriors they deemed worthy to enter the afterlife hall of the slain, Valhalla, ruled over by the god Odin. There, the deceased warriors prepare for the events of Ragnarök.
- Valkyrie received her horse, Aragorn, from Dane Whitman, the current Black Knight.