Sesshomaru

Sesshomaru (殺生丸, Sesshōmaru)''' is InuYasha's older half-brother, an extremely powerful full-blooded demon, easily invulnerable when fighting, and is able to fly in the air. Unlike most demons seen in the series of the anime and manga, he shows no interest in possessing any of the Shikon Jewel shards, feeling confident of his own strength and seeming to find the use of the gem to enhance one's power distasteful. He is initially ruthless in dealing with InuYasha, whom he hates as a half-demon who consorts with humans, and attempts to steal the sword Tetsusaiga from him. He even had a sword forged from the fangs of Goshinki, an incarnation of Naraku, that sliced the Tetsusaiga into two, knowing that this will match the Tetsusaiga's power. This sword's name is Tokijin, which is a double-handed khanda.

However, Sesshomaru gradually becomes more sympathetic and caring after meeting the human child Rin, who never shows any fear of Sesshomaru's demon-self. Even going as far as using Tenseiga to revive her, Sesshomaru becomes a guardian to Rin, coming and opting to Rin's aid whenever she's in trouble, while Rin is considered as his ward. He also gradually loses his antagonistic attitude towards Inuyasha, becoming more like a caring (though begrudgingly) sibling and ally rather than an enemy. His growing compassion and the reaction of the Tenseiga to Sesshomaru's compassion for Kagura and her slow death prompts the master swordsmith Totosai to reforge Tenseiga, enabling the Meidou Zangetsuha ("dark path of the dawn's moon blast") technique. After Naraku attempts to manipulate him by using Rin as a hostage, Sesshomaru becomes determined to destroy Naraku as his main goal. He eventually gains his own blade that is a manifestation of his own power, Bakusaiga, which appeared after he let go of his attachments and preoccupation with Tetsusaiga - at the same time, he also regained his left arm.

Weapons
Poison Claws - Sesshomaru's claws can create a corrosive acid, and even poison whips

Tenseiga - the sword he inherited from his father, used to bring back the dead. It doesn't have any offensive ability until Sesshomaru acquires Meido Zangetsuha, which sends opponents to the underworld

Tokijin - the sword forged by Kaijinbo from Goshinki's fangs. Eventually broken in a battle with Moryomaru.

Bakusaiga - the sword he acquired after he got over his attachments with Testusaiga