He is no longer going to test his might, he charges towards Darkan, he will not release powerful long range attacks, else he will risk his Behemoth Avatar falling apart.
This is a special location in the Cultivation Universe, it is a part of the Divine Realm in the past but because of infighting, it cuts itself off of its original body and is now drifting at the boundary of the universe.
But even so, it has limitations, in order to protect itself, it forcefully throws any Immortals back to the Divine Realm, making it impossible for Shadowslash to fight with his current strength.
Fortunately, his body is incredibly tough and powerful, he is not worried that he will be defeated by his opponent.
Mountain Destroying Punch, he fires a straight punch that seems to be slow but in actuality, a very quick and fierce attack.
In the eyes of Darkan, the fist that is flying towards him seems to have enlarged and he can see scenes of destruction behind it.