The Sage Art: Many Ultra-Big Ball Spiralling Serial Spheres is a technique utilised by Naruto Uzumaki which enhances his Rasengan with natural energy.
Overview[]
After creating multiple shadow clones with each of them holding a Rasengan, Naruto then enters Sage Mode. The clones then expand their Rasengan into Ultra Big Ball Rasengan and simultaneously strike the target, resulting in an enormous amount of damage, capable of even stunning Kurama.
