Incarnation - Omen of the Great God Ibuki

is the Noble Phantasm of Koga Saburo
By revealing his True Name, Assassin is able to transform into a monstrous fusion of human and giant serpent. Using the curse cast by the Great God Ibuki, who is also known by the name Yamata-no-Orochi, Assassin is bestowed the power to mutate his body into one optimized for battle. It greatly increases physical capabilities, granting immense Strength, Agility, and Endurance with which to pulverize opponents. When Miyamoto Musashi first saw Saburo's Noble Phantasm, she claimed that it had been a while since something made her tremble so much.
Furthermore, Saburo also gains advantages against Humans and humanoid beings. The scales of Yamata-no-Orochi which cover its body will not only nullify any attacks without Divinity, but also possess enough defensive strength to easily shrug off attacks from heroic Spirits of the Three Knight Classes. Yamato Takeru points out that this is a constant among Japanese Snake Gods, and that he already defeated one of them when he was alive. Due to this, he is confident that he can beat Saburo. However, while Yui Shousetsu states that Takeru's sword would certainly kill Saburo if it hit him, she claims that Saburo's abilities may also prove equally effective. Due to this, attacking him head-on would be a poor strategy. In the end, they defeated Saburo by drawing him out with Dorothea Coyett's Magecraft and Miyamoto Iori's support, for Yamato to then kill it with Special Technique - Eight-Current Raging Storm when the timing was right.Fate/Samurai Remnant - Chapter IV: The Gods Stir
However, remaining in this form for too long will cause the curse to run rampant. Koga Saburo will then lose all self-awareness and transform into a true monster that instinctively seeks to inflict death and destruction.Fate/Samurai Remnant - Logbook: Terminology
Its name is similar to the Noble Phantasm of his descendant Mochizuki Chiyome, Channeling - Omen of the Great God Ibuki.
==References==
Category:Noble Phantasms
Category:Noble Phantasms introduced in Fate/Samurai Remnant
Category:Transformation Noble Phantasms
Category:A+ rank Noble Phantasms
Category:Snakes