Isga was still unable to understand why Jason would do something as suicidal as retrieving the petrification serpent's egg and delivering it back to its mother too!
The former was still something he could understand if he were to give it some thought over a long period, but the latter was definitely beyond his comprehension.
However, if Jason wanted to do it, he could at least give his utmost effort to provide him with the best support.
That was at least what Isga thought.
As such he tried out multiple movements to figure out how to push Jason, and when he saw the way Jason positioned himself, he couldn't help but think that his new, yet, a suicidal friend knew what he was doing.
Taking into account the stance Jason took in addition to the strength he could utilize to push him, Isga was able to predict how fast Jason would be.
Yune gave them the sign that he was ready which further increased the tension around them within a moment.