For the next week, Sam just stayed in the cave as he practiced. He started expanding his limits on how he could manipulate and condense the energy into.
He practiced condensing the energy into smaller sizes, shapes and made the energy turn more chaotic and turbulent, sometimes smooth and mellow.
On the seventh day, he managed to condense the energy into the form of a cane that he could use to support himself and managed to walk for three minutes before it disappeared.
As for the energy balls, he could now control and throw the balls to a certain distance and make them explode at perfect timing.
The tree in front of the cave has long since disappeared and turned into smithereens. Along with that, the surrounding area was covered with holes.
He also managed to understand how to control the damage of the attack by manipulating the turbulence of the energy ball.