{NAME:}
Kyōka Suigetsu
{VERSE:}
Bleach
{CLASSIFICATION:}
Illusion Creation and Perception Manipulation on a 4D - Multiversal+ scale
{DESCRIPTION:}
It controls the five senses to the point where it can make the target misinterpret another person's form, shape, mass, feel, and smell to be an enemy's. The initiation condition for the hypnosis is for the enemy to see Kyōka Suigetsu at the exact moment it is released. After seeing it just once, this person will completely succumb to the hypnosis every time it is released, regardless of how long ago they saw it, as the Visored remain affected even after 110 years. When Aizen turns off the hypnosis by force of will, the image shown melts away or shatters. The complete hypnosis of Kyōka Suigetsu is absolutely flawless; even if the target is aware of being under the hypnosis, they cannot resist its influence. The hypnotic abilities of Kyōka Suigetsu make it a highly useful tool in combat, for Aizen can create simple or complex illusions to deceive his opponents. For example, by creating a decoy of himself, or other illusions to distract his opponents, Aizen can hide his own movements and attack with impunity. His opponent will remain focused on the illusion until it is too late to react. After the Hōgyoku disintegrates his Zanpakutō, Aizen is still able to use its illusionary powers, even against Yhwach's The Almighty; however, unlike previous usage of the "Complete Hypnosis" granted by his Shikai, Aizen implies that he isn't aware of what Yhwach is perceiving at the time, and would have no control over Kyōka Suigetsu's influence on Ichigo had he been exposed to its release. Additionally, the hypnosis only lasted until Yhwach revived himself.
{HOW IT WORKS:}
It manipulates all of his targets 5 senses, including their sense of time and spiritual sight and sensing. The manipulation of the senses allows Aizen to hide things from his targets sight, and could even make a fly seem like a dragon and a swamp a flower garden. Kyoka Suigetsu's ability takes affect when the target sees the release of Kyoka Suigetsu. This ability is called Kanzen Saimin, and it allows Aizen to create flawless illusions for his target. Aizen can use this ability to create entire false battles through illusions. Aizen additionally can use his illusions to mask entire buildings and maintain the appearance that an entire board of dead people were alive. Being aware of being under the illusion or that it's coming does not help resist it
{POTENCY:}
Extended Melee Range, Hundreds of Meters, 4D - Multiversal+
{DISCLAIMER:}
To stop the ability from activating, you need to touch the blade before the Complete Hypnosis has the chance to activate.
Now for some other things.
-Contrary to popular belief, no KS is not the same as some basic genjutsu from Naruto. Abilites in bleach all operate on a spiritual level, thats even the most basic aspects of bleach. So regular mental resistance doesn't really work as KS is affecting your spiritual self, not your physical self.
-KS did affect Yhwach while Yhwach had almighty up, so it can bypass the wacky op abilites of the almighty. For people who don't know, the almighty grants yhwach precognition and Fate Manipulation on a 4D - Multiversal+ and KS was even able to bypass all of that. So KS can operate on a 4D - Multiversal+ range.
-While KS was orginally limited to Aizen needing people to see his sword, he grew it to the point where he merged with his sword and so people only need to see Aizen himself for KS to activate. This neat evolution happened after the Mugetsu fight.