As for Tengen Uzui... Tetsu no Sosuke found him quite a headache.
Tengen Uzui's Breathing Technique was Breath of Sound. It had branched off from Breath of Thunder, but had already become a category of its own, no longer confined to Breath of Thunder's framework.
Inlaying stones into his weapons was an exceedingly difficult task.
In theory, he could activate stones of most attributes, but which would suit him best?
Fire attribute?
His weapons concealed explosives. If those came into contact with flames, he would probably blow himself up the moment he activated the attribute, before he could even attack.
Water attribute?
Did he still want those explosives to work? Soaking them outright would be absurd!
The other attributes posed much the same problem. None was particularly suitable.
Unless he could make the explosions more powerful... but if they became too powerful and Tengen Uzui lost control, he might inflict a thousand points of damage on the enemy and ten thousand on himself.
That was why Tetsu no Sosuke found this such a headache.
The other Pillars' weapons were more or less sorted out. Only this guy remained, and Tetsu no Sosuke really had no idea what to do with his.
"When in doubt, inlay a wind-attribute stone?"
Tetsu no Sosuke gave it some thought. It might just work.
After all, Tengen Uzui had trained as a ninja. A current of wind he could control at will might prove surprisingly effective.
As he was thinking, the ground beneath their feet suddenly shook. Tengen Uzui glanced down, then shot Tetsu no Sosuke a glare. "We have guests. I'll go greet them."
"Use the door..."
Before Tetsu no Sosuke could finish, Tengen Uzui's twin blades had already struck the floor, blasting a hole open with a thunderous crash. He leaped down through