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A quick-witted and clearheaded youth bearing the title of Onion Knight. Chosen by the Crystal to become a warrior, his sole purpose is to put a stop to the wizard Xande and the aftermath of his greed─the Cloud of Darkness. While his over-analytical nature makes him unsure of himself at times, it never clouds his profound sense of righteousness.


The Onion Knight is a playable character in Dissidia Final Fantasy Opera Omnia who can be recruited during Chapter 4 of the main storyline.



The Onion Knight's outfit is identical to his appearance in other Dissidia titles, with elements from all incarnations of the Final Fantasy III hero. The color scheme is based on his original NES appearance, while the helmet is based on the PlayStation Portable version. The body armor is closer to Yoshitaka Amano's artwork of the Unnamed Warrior (Amano Warrior II.jpg) for the NES release. His two swords are also based on this artwork.

The alternate costume, Bladewielder, is based on the "Unnamed Warrior" artwork made by Amano.


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Spoiler warning: Plot and/or ending details follow. (Skip section)

Chapters 4-5[]

Summoned into the conflict by Materia, Mog recruits this youth but sage knight at the Snowy Peaks of Crudelis. When the party meets the him, he declines their request to join in favor of pursuing his own observations, having been in the world for a short time already. Nevertheless, he trails the party and admits to being worried for them after they battle some of the monsters in the area.

The Onion Knight joins the party after another battle, admitting that he probably wouldn't be able to survive the monster infestations on his own. He is still skeptical of the "will of the light" idea, and is unsure if he'll still be allowed to join by saying so. Although the others give their reasons as protecting their worlds from torsions or battling longstanding enemies, the Onion Knight's motive is to discover the reason they're there and the truth behind the events. Zidane assures that they're not all heroes fighting for justice; everyone there has their own reasons to fight.

Later, the Onion Knight asks Terra about her motives because Mog's answers seem "rehearsed", and the party is still blindly following his instructions. Terra explains that she's fighting mainly to stop Kefka, assuring the Onion Knight that she and the others have decided on their own to do this.

Lost Chapter: The Power of Valor[]

After Cater joins the warriors' ranks they search a nearby forest for a torsion and face off against numerous enemies. Yuffie complains about her exhaustion during a lull in combat even as Cloud presses them to continue to their destination. As they begin to leave, Yuffie realizes that she dropped one of her materia. She decides not to risk further danger to her tired comrades by dragging them through unnecessary combat. Cater suggests that she and Yuffie sneak past the enemy waves to peek at where she might have dropped the materia.

They search in vain at a site of a previous battle when the Onion Knight approaches them, telling them to return before the risk becomes too great. He asks why Cater insisted on finding something that Yuffie had already given up on. Cater reminds him that Yuffie is a friend in need. The Onion Knight presents Yuffie with the materia, which she had dropped where she had been standing earlier. She excitedly regroups with the others.

Chapter 7[]

When the party encounters the Cloud of Darkness in Imber Manor, the Onion Knight speculates that there may be another imbalance in the forces of Light and Darkness as there was in his own world. He suggests that the presence of their "light" (as Mog deems it) may be causing the imbalance, rather than darkness.

Act 2, Ch. 7: Respite's Authenticity[]

The Onion Knight accompanies Zack and Cloud where they discover a large number of Sephiroth's clone-like dark manikins congregating in a large cave. The Onion Knight thinks about when Vivi's dark manikin was rendered a life-like replacement at Kuja's false Iifa Tree but does not understand for why Zack's dark manikin was chosen in particular for this task. He is frustrated when Cloud and Zack mull over the topic as neither actually remembers enough to piece the story together. He summons Mog to ask him if he knows anything, but Mog admits that all he understands well is brilliance rather than the bodies of the manikins which might conceal them. Mog does convey that the only dark manikin of Zack with brilliance was the first they had met. Mog later clarifies that because dark manikins are created not by the gods, but by the crystal core of darkness, it is possible that they are not bound by the gods' laws. The Onion Knight finishes Firion's thought as he reasons that if someone controls the crystal core of darkness, then they have unlimited power to manipulate, or destroy, the world as they wish.

Spoilers end here.



Image Name Image Name
DFFOO Onion Sword (III).png Onion Sword (III)
(4★) / 10CP
DFFOO Ancient Sword (III).png Ancient Sword (III)
(5★) / 15CP
Based on its updated design from Dissidia NT.
Onion Knight's signature weapon in the Dissidia games.
Based on its sprite from Final Fantasy III.
DFFOO Sword of an Illusory Youth (III).png Illusory Youth's Sword (III)
(5★) / 15CP
DFFOO Wightslayer (III).png Wightslayer (III)
(5★) / 35CP
Original weapon.
Manikin weapon based on the Onion Sword.
Original design.
DFFOO Serpent Sword (III).png Serpent Sword (III)
(5★) / EX (70CP)
DFFOO Serpent Sword (III)+.png Serpent Sword (III)+
(6★) / EX+ (100CP)
Based on its version from Dissidia NT.
DFFOO Royal Sword (III).png Royal Sword (III)
(5★) /LD (90CP)
DFFOO Kiku-Ichimonji (III).png Kiku-Ichimonji (III)
BT (130CP)
Based on its version from Dissidia NT. Based on its version from Dissidia NT.
Image Name Image Name
DFFOO Shell Helm (III).png Shell Helm (III)
(4★) / 20CP
DFFOO Onion Helm (III).png Onion Helm (III)
(5★) / 35CP
Original design. Original design.
Based on the "Onion Knight" costume from Dissidia NT.
DFFOO Onion Gauntlets (III).png Onion Gauntlets (III)
(5★) / 90CP
DFFOO Onion Gauntlets (III)+.png Onion Gauntlets (III)+
(6★) / 130CP
Original design.
Based on the "Onion Knight" costume from Dissidia NT.


Move Type Image
BRV Attack BRV, Melee DFFOO Onion Knight BRV Attack.png
Melee attack.
Steals enemy BRV.
BRV Attack+ BRV, Melee
6-HIT BRV attack.

Requires STR 60 Passive Ability. Condition: while Ninja III is active.

HP Attack HP, Melee DFFOO Onion Knight HP Attack.png
Expends BRV to deal HP damage.
Blizzard Combo BRV, Ice Element, Magic, Buff DFFOO Blizzard Combo.jpg
5-hit Ice BRV magic attack
Self: Marginally raises ATK with Sage I
Sage 3 levels MAX (Cannot be used with Ninja)
Blizzard BRV, Ice Element, Magic
1-HIT BRV attack.

Requires STR 55 Passive Ability. Condition: while Sage I/II is active.

Blizzard+ BRV, Ice Element, Magic
5-HIT BRV attack.

Requires STR 55 Passive Ability. Condition: while Sage III is active.

Multi-Hit BRV, Melee, Buff DFFOO Multi-Hit.jpg
6-hit Melee BRV Attack
Self: Marginally raises SPD with Ninja I
Ninja 3 levels MAX (Cannot be used with Sage)
High turn rate
Blizzard Enchant All Additional Ability, Buff
Grants party DFFOO Ice Icon.png Enchant effect for 3 turns
Blade Torrent EX Ability, BRV+HP, Melee DFFOO Blade Torrent.png
6-HIT BRV+HP attack + 6-HIT BRV+HP attack with low action delay.

Grants 3 Ninja stacks (max). Turns into Meteorite if Sage is active. Requires Serpent Sword's passive. Condition: usable when EX gauge is filled.

Meteorite EX Ability, BRV+HP, Magic DFFOO Puchi Meteo.png
6-HIT AoE BRV + single target HP attack.

BRV hits are dispersed if there is more than one enemy. Grants 3 Sage stacks (max). Turns into Blade Torrent if Ninja or no stance is active. Requires Serpent Sword's passive. Condition: usable when EX gauge is filled.



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  • Onion Knight's alternate skin has him wielding his EX weapon instead of his primary one in its artwork.