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With Est's cooperation, Noah poured his divine power into Demon Slayer. As he sensed Demon Slayer's strength, he gradually came to understand the wonders of a Spirit Armament.
Unlike ordinary weapons and even Treasure Tools, Spirit Armaments were the incarnations of an Elf User's contracted spirits. Not only did they possess life and cooperate with their Elf Users, but they could also combine the divine power of both the Elf User and the contracted spirit to unleash strength greater than either could wield alone.
Setting other Spirit Armaments aside, Demon Slayer, Noah's Spirit Armament formed from the strongest Sword Elf, was, in terms of quality and power alone, enough in Noah's view to rival the highest-ranked Treasure Tools within his Gate of Babylon.
It might even surpass them.
At the very least, Demon Slayer was absolutely no weaker than Excalibur.
The two were likely on the same level in terms of power.
However, Spirit Armaments and Treasure Tools were weapons of entirely different natures.
Though Demon Slayer was no weaker than Excalibur, that was only in terms of their overall rank.
If Excalibur's true name were released and it unleashed the true killing power of an Anti-Fortress Treasure Tool, then its strength would certainly exceed Demon Slayer's.
But in its normal state, when its true name had not been released, Noah's Excalibur could not compare to Demon Slayer.
Take Gilgamesh's Ea, for example. It was known as one of the strongest Treasure Tools, but that assessment only applied when its true name was released and it displayed the power to tear apart the world.
If someone simply used Ea