Roll creates a completely separate space that does not allow the presence of any other than the selected individuals. Instead of a completely dark interior, the inside of the sphere is the middle of the sky with spikes jutting out of the invisible spherical walls.
Anything outside of the sphere cannot interfere with anything inside, and vice versa. Box Weapons outside cannot enter and Box Weapons inside are sealed. However, Dying Will Flames can still be used to enhance weapons and oneself. Using the Form requires strong Dying Will Flames to maintain itself. Like the Needle Sphere Form, the oxygen supply is limited.