Berserk

"The most dangerous animal is the wounded and dying"

- Ichiro Berserk also known as Last Breath is a evil piece technique belonging to those who possess the evil piece of [rook]. Known to be one of the hidden abilities that Ajuka stated could be hidden in the evil piece systems. Very few rooks have actually managed to use it. The first time it being used when Elizabeth Cimerius used it against Edward Blackwood during the training for the Rating Game against Riser.

Summary
This technique was created with the intent of complimenting the strength of a rook while making up for their weaker speed and endurance, created for when they are backed into a corner. The technique is acts as a finishing move for when the rook is out of energy and is exhausted from fighting. Ajuka later explains that the technique works by burning the user's demonic energy, meaning that most rooks can only use it for a limited amount of time before they collapse.

Appearance
Since the wielder is burning their demonic energy, this attack causes the user appearance to change drastically. The user will face will become more animalistic, looking like a predatory beast. and the user's demonic energy will surround the user giving them the appearance of a burning flame.

Abilities
The technique was initially created with the intent of being used as a last resort. By gathering up their remaining demonic energy they convert it into power, causing their strength, speed, and durability to increase immensely while also healing their minor injuries, according to Ajuka this allows them to feel stronger and faster than they ever had and he stated that even a novice who doesn't know martial arts could fight like a professional for a few minutes due to their raw brute strength.

Weakness
The weakness to this technique is that this only works when the user is on their last leg when it comes to the fight. When the user runs out of demonic energy they collapse, meaning the user has to be careful. The user also becomes unable to use demonic magic and there is a limit to the injuries that can be healed.