Amon Garam', known as Adrien Gecko in the dub, is a supporting character of the third season of Yu-Gi-Oh! GX.
Adrian is the champion of Duel Academy's East Branch (East Academy) and the eldest son of the Gecko family. In the third season, Adrian is one of the four overseas champions invited to Duel Academy's primary branch. He initially investigates Thelonious Viper who is possession of the duel spirit Yubel. When Duel Academy is transported to an alternate dimension, Adrian aids Jaden Yuki and his friends while secretly spying on them for a Yubel-possessed Marcel Bonaparte. He later chooses to remain in the alternate dimension to obtain the power of Exodia the Forbidden One. To achieve this goal, Adrian sacrifices his childhood friend Echo and kills Aster Phoenix. He then challenges a Yubel-possessed Jesse Anderson to a duel, intent on ruling over the Duel Monsters spirit world unopposed. Despite being revealed to have a heart devoid of darkness, Adrian is defeated and subsequently dies when Yubel takes advantage of the darkness lingering in Echo's heart.
History[]
Adrian Gecko was an orphan who was abandoned by his family as a child. He awaited his death in the desert by staring at clouds in the sky. One day, he is found and adopted by the head of the Gecko family, a conglomerate in the petroleum, heavy chemical, and information technology industries. Adrian is initially groomed to become the Gecko family's heir and is given a playmate named Echo. When his adopted parents give birth to a child named Shido, Adrian loses his heirship status and his parents' attention. He attempts to murder an infant Shido out of bitterness and jealousy but is stopped by Echo. From that moment on, Adrian dedicates his life to protecting his younger brother and the interests of his family. When Shido is afflicted with an illness several years later, Adrian begs a doctor for medicine and is overcome with emotion when the former recovers.
Adrian enrolls at East Academy and becomes its top student. He travels to Duel Academy during its third year alongside Jesse Anderson, Jim Crocodile Cook, Axel Brodie, and Professor Thelonious Viper. While presenting himself as a laidback party animal, Adrian's true intention is to investigate Viper and a card of interest to the Gecko family. He is suspicious of Viper's bio-bands and takes note of its ability to drain the energy of duelists after a survival duel. Adrian investigates Viper's headquarters but is unknowingly caught by the security cameras. He then accepts a challenge from Chazz Princeton and recounts his difficult childhood before defeating the latter with his Cloudian deck. Despite the threat to his life being averted, Adrian still passes out from the bio-band absorption.
Following his duel with Chazz, Adrian manipulates Jaden Yuki, Syrus Truesdale, Alexis Rhodes and Hassleberry into acting as decoys while he infiltrates Viper's headquarters. He reaches Viper first and threatens him to hand over a card in his possession. He then sets off the timed explosives he planted to prevent Jaden's group from interfering.
Adrian reunites with the other students and saves Bastion Misawa from being attacked by a Harpie Lady spirit. That night, he returns to the library only to find that Yubel's arm is gone. Adrian later finds a Ra Yellow Student named Marcel Bonaparte whom Yubel has chosen as their new host. Despite being furious that he was not chosen as the host, he still agrees to work with Yubel in exchange for their power. To protect his identity and appease Yubel, he accompanies Jaden and the other overseas champions as they investigate the Gecko submarine in hopes of finding medical supplies for an ailing Blair Flannigan. When tasked with holding a safety rope to save Jaden and Axel from danger, Adrian secretly contemplates releasing it before being inadvertently stopped by Jim. After getting the supplies, the group then returns to Duel Academy only to find that the school has been taken over by Duel Ghouls. Adrian aids Jaden by defeating one ghoul but keeps his knowledge of Yubel's involvement to himself.
Sometime later, Adrian obtains the five Exodia cards and meets with Yubel who is now in possession of Jesse's body. They then infuse his left arm with scales to signify their bond. Despite this, Adrian believes that the only way to achieve ultimate power is by obtaining the power of Exodia and using it to destroy Yubel. After the Supreme King's defeat, he finds the cave containing Exodia's spirit and learns that a sacrifice is necessary to release them. Adrian then transports Echo, who had traveled to the alternate dimension to look for him, as well as the remainder of Jaden's friends to his location. Upon seeing him, Jaden realizes he has allied with Yubel while Echo is disturbed by his current state. Adrian tries to take Echo away to be sacrificed, first through physical force and then by appealing to her loyalty towards him. Appalled by his abusive behavior, Aster Phoenix challenges him to a duel to which he accepts. He activates "Ritual of the Ultimate Forbidden Lord" to summon "Exodius the Ultimate Forbidden Lord". He also convinces Echo to give her life to Exodia and shows no remorse as she screams in agony. Adrian is ultimately able to win the duel using Exodius' alternate win condition. Consequently, Exodia is released, Yubel's scales are removed, and both Echo and Aster are killed. Adrian then taunts Jaden over his actions as the Supreme King and departs, promising to defeat Yubel in Echo's honor.
Adrian confronts Yubel when they return to their tower following a duel with Zane Truesdale which they win. He demonstrates that he can match Yubel's power using that of Exodia's while also revealing that he had broken their previous bond. Noticing their lack of energy, Adrian challenges Yubel to a duel for the right to rule over the alternate dimension. Yubel accepts so they can restore their energy before they duel Jaden. Adrian's initial plan to draw into Exodia is thwarted by Yubel's "Hand Destruction" and although he is able summon "Exodius the Ultimate Forbidden Lord", it is banished by the effect of Yubel's ultimate Sacred Beast, Chaos Phantasm Armityle. He then initiates a backup strategy consisting of "Fog King", "Royal Sword", and "Fog Castle" to destroy Armityle. As the duel progresses, Yubel taunts Adrian by arguing that his sacrifice of Echo meant that he never truly loved her. Adrian is able to remain firm despite the taunts which causes Yubel to realize that he has no darkness in his heart. He claims this is because all of his actions were made to create a world devoid of suffering much to Yubel's disgust. When they destroy "Royal Sword", Adrian is able to activate "Crest Burn" to trigger the effect of "Fog Castle" to retrieve four of the Exodia parts. He also activates "Break the Seal" so he can add the fifth and final part to his hand on the following turn. The tide of the duel once again shifts when Yubel activates "Hand Destruction" to send the four Exodia parts back to the graveyard. Despite this setback, Adrian has one Exodia part in his hand due to "Break the Seal" and activates "Feather of the Phoenix" to add a second part to the top of his deck. On his next turn, he can win the duel by drawing the second card and using "Backup Soldier" to add the remaining three parts from the graveyard to his hand. Before this can happen, Yubel senses a hint of darkness within Adrian's deck which turns out to be the remnant of Echo's vengeful spirit. They are able to draw on this darkness to summon Torch Golem onto Adrian's field and tributes the Torch tokens to summon themselves. Adrian is then defeated when the Torch Golem summoned onto his field is forced to attack the Yubel card. As his life points drop to zero, Adrian expresses remorse for his many crimes and cries out for Echo before dying. What happnes afterword is unknown.