glad you ask, well for starters Braizal, real name is Jeramey, was normal to begin with. He plays in 2 areas in his village. The main entrance of the village and its graveyard. When Link receives the final Pendant, he must now go to remove Orsa's version of the Master Sword. Upon leaving, Link met another young warrior, a 17-18 year old with light blue hair, he tells Link that he is on patrol of this village. Later on Link and Gemmy made it to the Temple of Time to remove the Master Sword, the sword was drained of its sol, before they leave, Gemmy points over Link shoulder, revealing an in complete Okari standing behind him, it attempted to slash Link, but missed, breaking a wall in the temple also serving as an exit for both Link and Gemmy. The monster didn't bother them any longer due to the sunlight out side the temple(if night he will chase you til dawn).
Days later, depending on the time, Jeramey will be playing at the graveyard, alone. Link isn't here, only the 17 year old warrior who is keeping a watch over Jeramey. Jeramey finally came to a grave, it is unknown if it is someone he knew that passed. Out of nowhere, Okari appear. It appears to be that Okari finds such a place as a resting area, Okari pick up Jeramey and stared at him. The warrior spotted the beast, and ran to it in order to save Jeramey. The beast vanished and Jeramey stated that he was okay.
Link returns, this time to find his friend Kevin at the Tavern. As for Jeramey , he was gone.
Jeramey was in the field far from his village. He started to lose his mind and finally he is lost. He is no longer Jeramey but now Braizal.
The pictures of Braizal:
first image: Shows him when he became Braizal
second image: When Link finally finds him, he is consumed in shadows.
How to save him:
My game is coded into an rpg/fable lol, so in order to save him, your Master Sword must not contain a sol count of 24 and up. When fighting Braizal, you will be timed by an invisible counter. If you take to long, the chances of saving him is high, to short, killing his human form and you will fight is other phase which is not suppose to come up, its call Hollow Braizal.
So the trick is to have a low item count of sols, and timing your fight with him.
From original story in 06:
Jeremy spoke to Link through the shadows of his hollow body, he tells Link that he is going to die to Braizal soon, in order to stop him, Link must literary kill him. Hollow Braizal weakness was his cranium, Link impales the Sol Sword into Braizal forehead, he then burst into shadows, upon death Jeremy can be seen then vanishes.