Rudbornn Chelute

, (sometimes romanized as Rudobone) is an Arrancar in Sōsuke Aizen's army, and the sole member and founder of the Exequias.

Character outline
Unlike most Arrancar, his face is hidden. He is distinguished from the other Exequias with his bull-shaped skull, instead of the typical human-shaped skulls his subordinates wear. He seems to know Dordonii Alessandro Del Socacchio. It is unknown when Rudobōn joined Aizen's army, but he implied that his powers were given to him by Aizen, meaning they have some history. He also seems rather calm and rational, as shown when he chose not to attack Captain Unohana and Lieutenant Kotetsu when they arrived in Hueco Mundo.

Hueco Mundo arc
He and his subordinates clean up after each battle, collecting data before killing any survivors. It is implied they killed Dordonii off-screen for failing to win against his opponent under someone's orders. This was also the case with Cirucci Thunderwitch. In addition, they seem prepared to do the same with Yasutora Sado and Gantenbainne Mosqueda before being approached by Retsu Unohana and Isane Kotetsu. Surprised by the arrival of a captain-level Shinigami, Rudobōn and the rest of the Exequias withdraw in order to avoid conflict.

Fake Karakura Town arc
He and the rest of the Exequias appear in front of Ichigo Kurosaki in order to prevent him from reaching Ulquiorra Cifer and Orihime Inoue. However, Ichigo's friends engage the Exequias in order to allow Ichigo safe passage. Rudobōn told the Calaveras to not let themselves be distracted by this and made his way to his target before being halted by Rukia Kuchiki, who caught his sword and hand in ice. Soon after, he is able to break the ice fairly easily. Later, it is shown that Rukia has defeated all of his underlings. Rudobōn then releases his Zanpakutō, Árbol. Rudobōn disregards Rukia's comment, saying she will soon learn that defeating his underlings won't bring her to victory.

As his fight with Rukia continues, he taunts her as she appears to struggle fighting against his numerous Calaveras. He then proceeds to lament at how despite his power, he could not make the level of an Espada, and that Rukia and her allies could never match them, for they are just "birds against a shield". The battle between them is momentarily halted, as Rudobōn notices that Ulquiorra has gone through the dome of Las Noches. Seeing this as an opening, Rukia then freezes his "branches" saying, "you shouldn't have shown me your power". Before she can finish him, an angry and bigger Yammy Riyalgo attacks him, breaking a part of his mask in the process. His current fate is unknown.

Powers & Abilities
Expert Swordsmanship Specialist: Rudobōn is a proficient sword-wielder, able to cross swords with the likes of Ichigo for a short period.

Sonído Practitioner: While the extent is unknown, Rudobōn has shown skill in Sonído, enough to suddenly appear without warning.

Enhanced Strength: Rudobōn has considerable strength, enough to break free from Rukia's ice without any visible effort.

High Spiritual Energy: As an Arrancar, Rudobōn has a high amount of spiritual power. It was shown high enough for Dordonii to sense his presence from a considerable distance. In the anime, his reiatsu is shown to be deep violet in color.

Zanpakutō
. In its sealed state it, looks like a standard Katana, albeit longer and thinner. Árbol did not show any individuality or unique abilities, like most of the Privaron Espada, or some Espada, in its sealed form.
 * Resurrección: Its release command is . In his released state, the right side of Rudobōn's body becomes wrapped in branches reaching down to his waist, where they split off into roots that flare out on either of Rudobōn's sides. Four lightning bolt shaped branches grow out of the upper part of his right arm, with skulls similar to those worn by his subordinates hanging off of each one. He also carries a lightning bolt shaped stick or branch. He can grow six more of these branches (totaling ten) that spread to the other side of his body.


 * Resurrección Special Ability: From the skulls he can generate an unlimited amount of, his subordinates. This appears to be the reason why the rest of the Exequias all have the same mask. This also means that the Exequias, in truth, is Rudobōn alone. He refers to this ability as "godlike" and mentions that it was given to him by Aizen.