Currently, due to the limitations on his power, Ling Feng can't even utilize a fraction of the Chaos Sword's original power.
Yet he knows this is an incredibly powerful weapon; a divine weapon extending from the cosmos, whose former owner has vanished but was immensely strong. Ling Feng suspects its power might even rival that of the Lord of the Three Realms.
Enhancing all of his power in a short time to clash head-on against the pressure of the Lord of the Three Realms is certainly unrealistic. However, if Ling Feng can harness the Chaos Sword, unleashing even a fraction of its strength, he might easily deal with those visitors from the Three Realms.
There's even the possibility that he'll gain the strength that the Lord of the Three Realms must acknowledge. Before destroying Earth and the Xuanxu Realm, the Lord of the Three Realms would have to seriously reconsider.
Selfishly speaking, if Ling Feng masters the Chaos Sword, then he at least has the ability to protect himself.
