Brunhilde the Ascendant

Brunhilde the Ascendant is a Star Slayer Monster Spirit, who is one of the servants of Raimei Ōtsutsuki, often referred to as the Valkyries. The "Brunhilde the Ascendant" card was in possession of the new Sith Four until Luna defeated Momoshiki Palpatine with Leo, Indra Ōtsutsuki and Asura Ōtsutsuki's help and claimed the card back. The only other humans that have come in to contact with her are Jack Atlas, Tetsu Trudge, Yusei Fudo and Leo.