Gentle fist cant destroy Susanoo. Susanoo is a spirit being. This is the original databook which the wiki uses.
NINJUTSU; KEKKEI GENKAI: Susanoo (Mysterious, All-Encompassing Assistance Ability*)
User: Uchiha Itachi
Offensive; Defensive; Close, Medium, Long ranges; Rank: none
Main text
There are two doujutsu the use of which is allowed exclusively to those who have awakened to the clairvoyant eyes of Heaven, the Mangekyou Sharingan: Amaterasu, which speaks of Light and the material world, and Tsukuyomi, symbolizing the spiritual world and Darkness**. Only in them who hold both of those, dwells the power of the wild, rampaging god... Susanoo. The materialized chakra shapes itself after the wargod's commanding face and powerful physique, and the fierce spirit won't subside until the destruction of all the enemies in its line of sight...!!
There's a reason why Susanoo can boast perfect flawlessness in its offense and defense: the spiritual weapons it holds in both hands. The Sword of Totsuka* in its right hand, which will mow down any kind of enemy, and the Mirror of Yata*, upon which all attacks will bounce back. Substantial or spiritual, and then ninjutsu or physical attacks lose all kinds of significance before the god's efficacy.
Captions
-In the pupils that grasp the principles behind Heaven and Earth, dwells the valorous sword-wielding, shield-bearing Aragami***!!
-Protecting its caster, it destroys the enemy!
-In its left and right hands are held the unparalleled, wondrous Sacred Treasures* of virtues miraculous.
Picture comments
-Only those who have carried mastery of Mangekyou Sharingan - the doujutsu feared by those around it as the strongest - to its extremes will come onto the god's territory. A guardian deity to its caster, it eats away their life at the same time.
-The sake flowing out of the gourd assumes the shape of a sword, becoming the Totsuka! In addition, the souls absorbed by it are sealed there.
-The Sword of Totsuka
One swing of the Sword of Kusanagi* has the power to throw the people it stabs into an genjutsu world of intoxicating dreams, and seal them away for eternity. The sword itself carries a fuuinjutsu.
-The Mirror of Yata
The substance-less spiritual shield. Endowed will all Nature Alterations, it changes its own attributes in response to the attacks it receives, making the jutsu ineffective.
^^^It is an otherworldly god according to the databook which wiki uses. Viz translation is blurry in the god territory part. Gods territory the MS user steps in. After mastering MS. If it was just chakra forming into an avatar then the heck should the user step into gods territory? For fun?
