Performing a task with Ryūshiton costs as much energy as would be lost to do the task by mundane means. For instance if the user wanted to move a boulder, it would drain him of the same amount of energy that is required to move the boulder by physical means. The manipulation of matter and energy is also limited by the laws of conservation of mass and energy and these laws can never be broken. Violation of these laws will force the technique to continue to drain the user of chakra until the required amount was available. So if a user performs a technique that needs more energy than he has at the moment, the technique will drain him or her of all his energy, leading to the user's death.