The anima's eyes widened as it saw Mark crouched with his arm drawn back. The anima immediately shifted all of its attention to the area Mark punched before as it increased the defenses around that area! It knew that Mark wanted to damage the same spot over and over again, and it was going to use this advantage to gain the upper hand in this fight! Once Mark attacks, he would be shocked to see that the area is heavily defended, and it would counterattack before Mark can regain his bearings!
But the anima had no idea that this was exactly what Mark wanted it to do. Mark hit the same spot over and over again to make it think that he was trying to weaken that spot. That way, when Mark changes his mode of attack, it would be too sudden, and the anima would be caught unawares. And the fool fell for it, hook, line, and sinker.
Mark pulled his hand back before it could connect with the ant's side and he redirected the attack to its defenseless, unprotected shoulder!