Koyo Hibiki

Koyo Hibiki (響紅葉, Hibiki Kōyō) is the younger brother of Midori and a three-time Duel Monsters world champion. Koyo was a great Pro League Duelist who used "Elemental Heroes" and is the former owner of the "Elemental Hero" Deck used by Jaden in the series proper as well as the owner of "Winged Kuriboh."

Biography

In his youth, Koyo was given the "Winged Kuriboh" card as a prize for winning a tournament by Maximillion J. Pegasus. Before the series proper, Koyo was able to rise to the position of World Champion. However after losing a Shadow Game to a mysterious Duelist, he found that every time he drew a card while Dueling seriously, the Deck of his heart would be depleted, at which point he would die. The Duel was erased from his memory. Koyo suffered from this and was sent to the hospital where he met a young Jaden who had broken his leg while playing baseball. He taught Jaden all he knew about Dueling and to always have fun Dueling no matter what.

With Jaden's encouragement, Koyo left the hospital for the local tournament and quickly rose to the semi-finals. After the Duel, he was approached by Chazz, who received an autograph from him, and in the process, Koyo's "Winged Kuriboh" altered Chazz's "Light and Darkness Dragon" card. Before he could continue the tournament, Koyo fell faint, and he was returned to hospital without Jaden seeing him Duel. With his health failing, he decided to give up Pro-Dueling and made Jaden his final opponent. Though both Duelists used their powerful "Elemental Heroes," the effect of "Winged Kuriboh" allowed Koyo to beat Jaden in the end, by a blow from "Elemental Hero Terra Firma". After defeating Jaden, he gave him his Deck and his lucky red jacket. However, he found that in this he had drawn the last card, completing the curse and falling into a permanent coma, presumably kept alive by Winged Kuriboh.

He is revived after Jaden and Chazz defeated Tragoedia, and faced Jaden in a Duel once more upon the conclusion of the manga.

Etymology

Koyo's full name means "autumn colors", but can also be translated to "autumn sounds".

Deck

Koyo plays an nature-based "Elemental Hero" Deck. Before the start of the manga, Koyo gave Jaden his Deck, including the one-of-a-kind "Elemental Hero Terra Firma" card.

The list given here are only the cards he was actually seen using. Jaden has used many other cards that could be assumed to have formerly been his, but it's also clarified that Jaden modified the Deck since receiving it. In addition, Koyo allowed Jaden to keep "Winged Kuriboh" when he gave the rest of the Deck back.

Image	Information
	Elemental Hero Heat | Elemental HERO The Heat (Ｅ・ＨＥＲＯ ザ・ヒート Erementaru Hīrō Za Hīto)
	Level 4 ★★★★ ATK 00001600 DEF 00001200
	Elemental Hero Lady Heat | Elemental HERO Lady of Fire (Ｅ・ＨＥＲＯ レディ・オブ・ファイア Erementaru Hīrō Redi obu Faia)
	Level 4 ★★★★ ATK 00001300 DEF 00001000
	Elemental Hero Ocean (Ｅ・ＨＥＲＯ オーシャン Erementaru Hīrō Ōshan)
	Level 4 ★★★★ ATK 00001500 DEF 00001200
	Elemental Hero Stratos | Elemental HERO Airman (Ｅ・ＨＥＲＯ エアーマン Erementaru Hīrō Eāman)
	Level 4 ★★★★ ATK 00001800 DEF 00000300
	Elemental Hero Voltic | Elemental HERO Voltech (Ｅ・ＨＥＲＯ ボルテック Erementaru Hīrō Borutekku)
	Level 4 ★★★★ ATK 00001000 DEF 00001500
	Elemental Hero Woodsman | Elemental Hero Forestman (Ｅ・ＨＥＲＯ フォレストマン Erementaru Hīrō Foresutoman)
	Level 4 ★★★★ ATK 00001000 DEF 00002000
	Winged Kuriboh (ハネクリボー Hane Kuribō)
	Level 1 ★ ATK 00000300 DEF 00000200
	Elemental Hero Absolute Zero (Ｅ・ＨＥＲＯ アブソルートＺｅｒｏ Erementaru Hīrō Abusorūto Zero)
	Level 8 ★★★★★★★★ ATK 00002500 DEF 00002000
	Elemental Hero Core (Ｅ・ＨＥＲＯ Ｃｏｒｅ Erementaru Hīrō Koa)
	Level 9 ★★★★★★★★★ ATK 00002700 DEF 00002200
	Elemental Hero Gaia (Ｅ・ＨＥＲＯ ガイア Erementaru Hīrō Gaia)
	Level 6 ★★★★★★ ATK 00002200 DEF 00002600
	Elemental Hero Inferno | Elemental HERO Flame Blast (Ｅ・ＨＥＲＯ フレイム・ブラスト Erementaru Hīrō Fureimu Burasuto)
	Level 8 ★★★★★★★★ ATK 00002300 DEF 00001600
	Elemental Hero Terra Firma | Elemental HERO The Earth (Ｅ・ＨＥＲＯ ジ・アース Erementaru Hīrō Ji Āsu)
	Level 8 ★★★★★★★★ ATK 00002500 DEF 00002000
	A Hero Arrives | Hero Arrive (ヒーローアライブ Hīrō Araibu)
	Card type Spell Card
	Hero Pressure (ヒーロープレッシャー Hīrō Puresshā)
	Card type Spell Card
	Miracle Fusion (ミラクル・フュージョン Mirakuru Fyūjon)
	Card type Spell Card
	Mystical Space Typhoon | Cyclone (サイクロン Saikuron)
	Card type Spell Card
	Nobleman of Extermination | Disciple of Extermination (撲滅の使徒 Bokumetsu no Shito)
	Card type Spell Card
	Parallel World Fusion (平行世界融合 Parareru Wārudo Fyūjon)
	Card type Spell Card
	Polymerization | Fusion (融合 Yūgō)
	Card type Spell Card
	Pot of Greed (強欲な壺 Gōyoku na Tsubo)
	Card type Spell Card
	Residual Reflection (残 (ざん) 留 (りゅう) 思 (し) 念 (ねん) Zanryūshinen)
	Card type Spell Card
	Voltic Spear | Voltech Spear (ボルテック・スピア Borutekku Supia)
	Card type Spell Card
	Element Counter (エレメント・カウンター Eremento Kauntā)
	Card type Trap Card
	Element Fusion (元素融合 エレメント・フュージョン Genso Yūgō - Eremento Fyūjon)
	Card type Trap Card
	Hero Barrier (ヒーローバリア Hīrō Baria)
	Card type Trap Card
	Hero Signal (ヒーロー・シグナル Hīrō Shigunaru)
	Card type Trap Card
	Higher Dimension Guard (高 (こう) 位 (い) 次 (じ) 元 (げん) ガード Kōi Jigen Gādo)
	Card type Trap Card
	Terra Firma Gravity | Earth Gravity (アース・グラビティ Āsu Gurabiti)
	Card type Trap Card

Duels

References

1. ↑ ^{1.0 1.1 1.2 1.3} Yu-Gi-Oh! GX Volume 9 character profiles