Upon the creation of new OCs coming soon, I noticed Senji has possession of “two demonic" blades already Nikita and Yatono, but the final blade Obsidian is a forging of the two swords giving Senji the second key to the “Halo" in space that orbits the universe but in order to unlock Elysium he needs Exodus the second key to Equilibrium, a mass of it's energy will consume the blade shifting the bearer's soul with a new power limit .
Items needed to forge:
Corrupt core
Limbo protector stone
Nikita
Yatono
Ultima core
Titan soul
Devils Equilibrium
Senji's full form
Senji's full form 2
Veral-Senji core