Matthew had been testing the limits of his current strength by trying to defend against the bear's attacks on equal grounds meaning that he limited the usage of his solid aura ability only so that it enabled him to stand toe to toe with the bear even though he has the ability to pour in more aura to make his solid aura stronger than the bear.
And the result had satisfied him so far because the bear he fought was incredibly good at fighting in close range and Matthew had learned a thing or two about being flexible in his attacks and used unpredictable methods and taking advantage of unusual angles to attack instead of the rigid method that Matthew tried to implement from the frequently used martial arts that he knew back on earth such as boxing or Muaythai.
But that doesn't mean that said martial arts are just b.s and didn't work, the main problem with using such martial arts is Matthew himself.
