Problem
Dev's cleared his mind through the meditation. He then opened his eyes.
Only combining all the cores into a five-element power core was left to reach Level 1, but Dev needed a bow having all the five elements to attempt that.
According to Dhanurveda, an archer who has successfully generated the respective core of the five primary Prana elements needs to use a bow to create a five-element power core. For doing that, the archer would first need to link the power core with the element of the bow.
The power core could only be linked to the Prana element of the bow by gaining control of its element and merging it into the power core. But there was also a danger in doing so because if the merging of the Prana element and power core failed, the previously generated core would get destroyed.