I Can Summon the Valkyrie

This is a world where humans can summon Valkyries. Wu Ning accidentally obtained the strongest Valkyrie in history. Facing the invasion of mechanical creatures, everyone trembled. "What should we do? We don't have an elemental Valkyrie here?" Wu Ning: "Don't worry, my Valkyrie is elemental." "There is no armor type either." Wu Ning: "My Valkyrie also has armor-based abilities." "What about the healing system? This is the most important!" Wu Ning: "Stop nagging, my Valkyrie is almighty!"