Valkyrie's Armor is a ceremonial armor used by the Valkyrie. Brunnhilde, one of the last surviving members, wore it again when she returned to Asgard to defend it from Hela.
History[]

Brunnhilde fights against Hela
Millennia ago, Brunnhilde wore her armor when the Valkyrie launched an attack on Hela. Following the defeat of the battle, Brunnhilde dropped her title as an Asgardian warrior and did not wear the armor for a very long time.[1]
In 2017, when Brunnhilde returned to Asgard to fight Hela and her army, she donned the armor once more.[1]
By 2023, Brunnhilde donned the armor to participate in the battle against an alternate Thanos and his army.[2]
Appearances[]
In chronological order:
Thor: Ragnarok
Avengers: Endgame
Loki | Episode 1.01: Glorious Purpose (footage)
Captain Marvel: What Makes A Hero