Ivar's mind had come back to that fight again. Even instinctively, he could keep on exchanging blows without problems with Tein.
He was piercing the air with his arrow, attacking with proficiency and speed. He could feel that his resistance was gone. After breaking through the max potential of the exoskeleton, his body was all harmed.
It was miraculous that he could still be standing on his feet and clashing with someone who didn't have any harm anymore, except the blood loss due to his previous wounds that were already healed now.
Ivar, on the contrary, had his muscles and bones worn out, also as his body wounded by the Vanir of flames. Each second of that fight that passed, more and more blood he lost, and his internal harm worsened.