Koichi Kimura

Koichi is the final member to join the team. He was chosen to wield the Spirits of Darkness that hold AncientSphinxmon's power. He is Koji Minamoto's twin brother. Their parents divorced when they were very young, so they hardly knew about each other. Koichi learned about Koji when his grandmother told him on her deathbed. He ran after Koji, who was on his way to the Digital World, to try and catch up with him but he fell down a flight of stairs and ended up in a coma as a result. His mind was taken into the Digital World by Cherubimon, who saw his sadness. He erased Koichi's memories and gave him the Human Spirit of Darkness turning him into semi-physical form as Duskmon. Ophanimon restored his memories, but Cherubimon managed to keep him under his control. Finally he was freed from Cherubimon's control by Aldamon and Beowolfmon after a massive battle with him as Velgemon. His evil spirit was so powerful that it took Aldamon weakening him with an attack for Beowolfmon to be able to finish the job. Koji purified his spirits and released him from their control with a Fractal Code Digitize once his Fractal Code was revealed. After this, he wielded the purified Spirits of Darkness and fought alongside his brother and the other DigiDestined after his determination to fight Cherubimon caused them to come to him again but in their purified state. With his purified spirits, he began Spirit Evolving into Lowemon and JagerLowemon instead of Duskmon and Velgemon.Later on, Koichi began to realize that, in reality, his mind was not truly in the Digital World. On multiple occasions, the DigiDestined were seriously injured, revealing their Fractal Code. However, each time Koichi is far less hurt and reveals no Fractal Code. Crusadermon informed him that he was only a ghost within the Digital World and this troubled him towards the end of the series. As the final battles with Lucemon ensued, Koichi sacrificed himself to save the other DigiDestined, giving his spirits of darkness to his brother, Koji. The powers of light and darkness begin to react within Koji's body, helping trigger Koji and Takuya's final evolution into Susanoomon. In the final episode it is revealed by Lowemon that Koichi is still alive but is badly hurt. As Koji burst into the emergency room, he realized he was too late to save his brother. But in the end, the other DigiDestineds' D-Tector Digivices were able to revive him after his death just moments earlier.

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Koichi's Digivice

Koichi's Digivolution (Spirit of Darkness)

Löwemon - Human Spirit Level (True Form)

Using the Human Spirit of Darkness, Koichi becomes this majin Digimon. Strongly holding the power of AncientSphinxmon, he wields the ancient Digimon's tail and head as his lance and shield, respectively.
Attacks
Shadow Meteor: Löwemon gathers energy in the jaws of the lion head on his chest and releases a powerful burst of dark energy.
Shadow Lance: Löwemon raises his spear, spinning it and gathering momentum and then dashes forward, thrusting his spear forward.

JägerLöwemon - Beast Spirit Level (True Form)

JagerLoewemon is an Ultimate-class Hybrid Digimon. He is the Legendary Beast Warrior of Darkness, using the power of AncientSphinxmon. Using the Beast Spirit of Darkness, Koichi becomes this cyborg-beast Digimon. Koichi was the second person, aside from Zoe Orimoto, to be able to control their beast spirit without challenge. The reason Koichi was able to control his Beast Spirit so fast and easy was because of his desire to protect Koji Minamoto. He is first seen in episode 33. JagerLoewemon is also called the "Lion of Darkness". His body is very hard as it's covered with a special metal "Obsidian Digi-zoid".
Attacks
Ebony Blast: Releases a burst of dark energy as the pistons on his back recoil and can continue releasing bursts.
Dark Master : Leaps forward as dark energy forms a giant burst of dark energy from his mouth, slicing through his enemy as he kills and absorbs data

Susanoomon - Mega Level (Ancient Spirit Evolution) (All Ten Human & Beast Spirits)

Susanoomon is created when all twenty spirits left by the Ancient Warriors are fused together, and possesses the combined powers of all 10 Legendary Warriors. He somewhat resembles Omnimon from the first season. He's by far the strongest of the Legendary Warriors, and the only Digimon in the series strong enough to fight Lucemon.

When Koichi sacrificed himself to save the others from Lucemon Chaos Mode, he gave his Spirits of Darkness to his brother Koji. Takuya and Koji then brought all twenty Spirits together and became Susanoomon. In this form, they fought against Lucemon twice, the first time against Lucemon Chaos Mode, and then again to stop Lucemon Shadow Lord Mode from entering the human world. In this second fight against Lucemon, all five children combined to form Susanoomon and was able to penetrate the shadow-sphere where Lucemon Larva was hiding. In the final battle, Susanoomon managed to shatter the shadow-sphere, destroy Lucemon Shadow Lord Mode, and then split into the 10 separate Legendary Warriors and destroyed Lucemon for good.
Attacks
Celestial Blade: Susanoomon fires a blade of energy from his sword that can be used to cut his enemies in two. The sword he uses is enormous, the blade of energy it generates is at least thousands of feet long.
Heaven's Thunder: Susanoomon creates clouds which fire enormous bolts of energy down onto his enemies.

AncientSphinxmon - Mega Level (Ancient Warrior of Darkness)

AncientSphinxmon is an Ancient Mythical Animal Digimon and one of the ten Ancient Warriors with the power over darkness. He is called "The Beast of Darkness who Causes Death" and rules over destruction and death with his crimson eyes.
Attacks
Necro Eclipse: Fires beams from his ruby-eyes.
Dark Blast: Rears up on his hind legs and crashes down, gathering dark energy in his mouth which is released as an orb towards the enemy.

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