QuickBlade

His defense, it could be said to be perfect.

"If i want to kill him in an instant, I will have to use the my fists." David thought for a while. While mental techniques was incapable of unleashing his full power, is body was his final trump card. 

"This Blood Manaic is too terrifying. I've met over tens of thousands of spirit readers. However, among their star weapon control, none have been so terrifying. His Crimson line attack is obviously a very large blade but he had reached such control it actually turned into a red thread to attack. , incomparably flexible and its orbit and movement is hard to track as well. Its power itself is hard to gauge. The moment it's unleashed, its power is shocking." Asura thought.

The swordMegaton's control was indeed at a point where he controlled it thoroughly, perfect without any flaws, unleashing its power whenever required and concealing its power when not needed.

...