Tobirama Senju sensed the power within his martial soul. It was Magnet Release.
This bloodline limit suited him well and could be used in conjunction with the Flying Thunder God Technique.
"Is it merely an energy form?"
Orochimaru examined the translucent longsword made of energy. It resembled his Kusanagi Sword in appearance, so he summoned the Kusanagi Sword and guessed that they should be able to fuse. After all, his disciple's sword and spear were both physical objects.
"They can be fused. A martial soul is fundamentally an energy form shaped by Yin-Yang Release and needs to merge with tangible matter.
"Chakra metal is best. Ordinary metal, on the other hand, needs a long time to be nurtured and infused before it transforms into chakra metal. It will be slower at the beginning."
Yang Hao confirmed Orochimaru's guess. He had not created a physical weapon martial soul, but an energy form, much like Susanoo's swords and blades. It needed to merge with physical matter before it could fully stabilize.
Nor did it necessarily have to be chakra metal. Ordinary metal would work as well. Once the fusion reached a certain degree, the martial soul could guide chakra to infuse the material and transform it into compatible chakra metal. This was also an application of Yin-Yang Release.
"Can we only create martial souls based on the nine tailed beasts?"
Orochimaru hoped for a snake-type martial soul.
"There is an issue of compatibility. Only the essences of the nine tailed beasts can perfectly merge with the chakra of us ninja, as though they share the same origin."
Yang Hao said there was no other way for now, though it could still be altered through acquired means later on.
"The martial soul we create is merely a foundation. It can merge with other