Each weapon is tied to a specific magic spell. The Army of Sparta (Blades of Exile) provides a protective phalanx, while the Soul Summon (Claws of Hades) allows you to call forth defeated enemies to fight for you.
Focus on the Hippocampi (water horses) pinned to the cliffside. Use the Blades of Exile to break their claws while dodging Poseidon’s lightning strikes.
If you are playing the Remastered version on PS4 or PS5, note that save files from the original PS3 version are not compatible. You must start a new journey from the beginning. Core Gameplay Mechanics
To make the most of your playthrough, always revisit previous areas once you unlock new tools; the "God of War" series is famous for rewarding backtracking with powerful upgrades.