Duel at the Determino Battle Arena

## Casualties

*"Confident, Bravery challenged her brother. If he could prove to be more powerful than she, he could destroy the Barrier."*
―W. D. Gaster[src]
The **Duel at the Determino Battle Arena** was a public fight in the Determino Battle Arena between Copper and Agate Lightvale organized by themselves to decide whether or not the Barrier should be destroyed. As a result, Copper came out victorious, causing the defeated Agate to exile herself from Determino.

## Background

*"The SOUL of Determination wanted to destroy the Barrier, while Bravery thought it was a good measure to keep the peace."*
―W. D. Gaster[src]
In the aftermath of the War of Humans and Monsters, Copper and Agate Lightvale, two powerful Wizards responsible for the Barrier's creation, ruled over humanity. Ten years following the war, Copper and Agate had opinions on monsters that differed from each other. One night, Amber Lightvale was reading a book when she overheard her siblings having a dispute in their discussion room, with Copper wanting to destroy the Barrier to allow monsters to live alongside humankind once more and Agate intending not to in order to maintain the current peace in Meropos.

As Amber watched in dismay from behind a door, Agate drew out her flaming Spear of Bravery towards Copper's face while smiling confidently. Agate challenged her brother for a legitimate duel at the Determino Battle Arena to settle their argument, since the victor of the match could decide the action to take for the Barrier. However, prior to the match, Agate convinced Copper that keeping monsters sealed in the Underground would be the best decision for their people at the moment, so he agreed to lose in their upcoming duel so that Agate could win.

## Duel

*"Bravery's power was greater, but as the battle continued, she felt an incredible strength within her sibling. His Determination had no limits, leading him to victory."*
―W. D. Gaster[src]
The next day, a public duel between Copper and Agate Lightvale began at the Determino Battle Arena, just as they had arranged. Amber Lightvale sat at her throne, visibly upset at the sight of her siblings clashing and swinging their respective weapons at each other. The audience proceeded to cheer while Agate managed to scar her brother and bruise his left cheek.

The duel pressed on and Copper, still believing he was in the right, chose to break his promise and utilize his full force against his sister to impose himself the winner of the fight. Agate, wielding her Spear of Bravery, realized this once the determined Copper summoned his arsenal of weapons constructed of Determination, much to her tearful despair. Copper successfully subdued his unscathed sister, who fell on her backside and had Copper's Sword of Determination drawn close to her neck. Amber was surprised by the turn of events and the crowd became increasingly excited.

Copper stared down at Agate before turning around and raising his sword in the air, prompting the crowd to go wild in cheers. Agate was overcome with utter humiliation combined with betrayal, causing her to lose her Bravery and with it, her magic. Another outcome of this loss was that Agate's teary eyes turned grey, along with her hair. This altered the mood of the audience while Agate hurried out of the Arena, concerning both Copper and Amber.

## Aftermath

### Agate Lightvale's Corruption

*"She exiled herself, searching for a Trait greater than Determination. And alas, she found it."*
―W. D. Gaster[src]
With her embarrassment and her loss of magic, Agate Lightvale ventured out of Determino in search of a SOUL Trait more powerful than Determination so that she could defeat Copper Lightvale in a rematch. Eventually, Agate encountered HATE and became its host to have her former Trait Bravery inverted into the dark orange Fear, which was strong enough to overpower Determination.[*citation needed*]

By the time Agate reunited with her brother, she had already became mentally insane and psychotic. When Copper refused to have another duel, Agate sadistically assassinated both Amber Lightvale and her brother, considering this a rematch victory for herself.

### Inaccurate History

*"History books never tell the full story..."*
―Bête Noire[src]
Throughout the thousand years succeeding the duel, the history of humans had been documented into the literature series *Human History*. However, the events told within the books were not entirely accurate to the actual occurrences, a fact that Bête Noire noticed. In the Mid-23rd Century, W. D. Gaster read the *Human History* volumes and learned about the duel in the story titled *The Tale of the Twin Siblings*.

## Appearances

In chronological order:

* *Glitchtale Origins: The Black Beast*
* *Glitchtale*
	+ *Season Two*
		- *Dust* (imagination)

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 *Glitchtale: 2.02: Dust*
2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 *Glitchtale Origins: The Black Beast*
3. ↑ 3.0 3.1 3.2 Road Down Memory Lane | Unspoken Truth #17
4. ↑ *Glitchtale: 2.01: My Sunshine*