Boom!
Muria thrust his sword into a floating cannon that Heloise was operating, almost firing it point-blank at his face. Bolstered by the aura of Martial Dao, the long sword in his hand, which was nothing more than a toothpick compared to the floating cannon, pierced it straight through, with pure white and dazzling Qi appearing from the opposite end of the cannon.
Originally, this white spot was just a tiny dot when it first appeared, but it quickly expanded at a visible rate and then spread, cleanly slicing the entire floating cannon in two.
Then, the cleanly cut halves of the floating cannon split apart, yet they did not fall downwards because Heloise was controlling them, directly using them as weapons to strike at Muria.