This devil fruit gives the user the power to control, generate and give raw, unbrittled energy. This means that the user can never tire, having infinites amount of energy that he can also give to others. He can manifest this energy in form of blasts of power and also he can swing his arm with a dose of energy unincalculably strong, enough to destroy cities in an instant.
He can also control the amount of power he puts into the energy he releases. He can also almost never be damaged as the energy released on the user is absorbed and the user can choose to release it millions times stronger, keep it or simply nullify it. Thus, it makes it very hard for anyone without a logia fruit or the Mythical Hito Hito no Mi Model: Mother-Nature to face the user in a battle.