Adrian was getting heated up as his entire body is now geared up for battle mode. He was so heated up that he was no longer holding back with the use of his energies. Adrian made a conscious decision to not use nether energy because that is harmful to gods, and he did not want to be in the bad side of the god that rules an entire dimension. The fight's intensity increased to the point that his battle junkie side has now activated.
Swords started to clash with one another as the Fire Giant Surtr coated his blade with fire while Adrian coated his blades with nether energy. The two beings could be seen fighting each other with their all even if the Fire Giant Surtr has his strength still sealed. The Fire Giant Surtr could see that it was him that is starting to lose.