Ken_Uzumaki
RWBY not only he can flex his power to them, but he can add waifus I really hope you can add cinder and emerald If there is any missunderstooded villain its them, they might be evil but just because the world make them evil Also, seeing the reaction of the whole rwby cast and world for mcs power whould be hillarious
And the most of it Fate/Grand Order and take in harem Scathach Lancer and summer version, Skadi, Medusa, Gorgon, Medea Caster and Lily, Mordred, Arcueid Brunestud from Tsukihime Remake , Carmilla Rider, Kama, Tiamat, Tomoe Gozen, Tamamo no Mae, Tamamo Vitch, Mash Shielder, Saint Martha, Oda Nobunaga, Ereshkigal, Ishtar, Kiara Sessyoin, Astolfo Rider girl, Hippolyta, Chevalier D'eon girl, Irisviel Von Einzbern Caster, Musashi Miyamoto, Okita Souji, Okita Souji Alter, Atalanta Archer and Berserker, Nero Claudius, Francis Drake, Anne Bonny and Mary Read, Jeanne d'arc, Jeanne d'arc Alter, Nightgale, BB, Passionlip, Semiramis Assassin, Stheno, Euryale, Marie Antoinette, Xuanzang Sanzang, Minamoto no Raiko, Merlin Prototype, Brunhild Lancer, Valkyrie, Artoria Pendragon all classes of Saber, Lancer, Alter, Artemis, Morgan Ley Fae Berserker, Katou Danzou, Mata Hari, Ryougi Shiki Assassin, Leonardo da Vinchi,