BROOK IS A NECROMANCER Theory

There are many theories on Brook’s fruit, the best I’ve heard are that Brook’s fruit is the hell fruit & that Brook’s fruit gives him soul manipulation. But imho there is a better power that fits the title of Yomi Yomi no mi other than the aforementioned theories; I believe that the Yomi Yomi no mi grants its user the power of Necromancy.

WHAT IS NECROMANCY?
Necromancy is magic that is used to manipulate the dead, http://powerlisting.wikia.com/wiki/Necromancy . If you read the page that i linked it states that necromancy can give the user the ability to cheat or bypass death… this sounds a lot like Brook

WHY NECROMANCY?
I believe that necromancy is the most likely power that the yomi yomi no mi has for several reasons. First, http://onepiece.wikia.com/wiki/Yomi_Yomi_no_Mi the fruit’s official english name used by both Viz and funimation is the revive revive fruit; how would the underworld or manipulating living souls even make sense if the fruit is called the revive revive fruit? Now i know that Yomi no kuni means underworld, but if that was the case wouldn’t Oda have told Viz/ funimation to just call it the yomi yomi fruit rather than translate it to english. I believe that the reason it’s called the revive revive fruit is because it’s power centralizes on reviving the souls of the dead; i mean if Brook can revive himself, why not others?

WHAT POWERS WILL BROOK HAVE AND HOW WILL THEY WORK?
Brook’s power will allow him to talk to souls in the underworld, it will allow Brook to make contracts with the dead. Once a contract is made, Brook can then summon the spirit whenever he pleases. The spirits he summons can only exist for 30 minutes a day unless they are bound to an earthly object; but whenever the spirits are summoned they have the intangibility and recovery of a logia. He can control and manipulate the powers of the spirits he summons, in addition he can fuse his spirits to objects/weapons to make them stronger; finally Brook can merge his soul and the soul of the spirit to become stronger, like Moria’s shadow assguard. The spirits he summons will retain their original haki and strength but will lose any devil fruit ability that they used to possess.

WILL THIS RUIN ONE PIECE?
I knew that if i brought up this theory, many people would disagree with it since it could potentially be used to revive important characters like Ace. Well for your info. none of the spirits that Brook will use will be any significant dead character, however i can see Brook telling Luffy that he had a conversation with Ace and how Ace told Brook that Luffy is the one who will surpass Roger

WHAT IS SOUL SOLID?
Over the time skip, Brook figured out how to use his sword to freeze his opponents and named it soul solid. Now many people say that soul solid is Brook projecting his soul into the sword; however when Brook talked about the sword, he mentioned the land of the dead and how the longarm tribe “sharpened the sword”. This leads me to think that soul solid’s power was somehow increased by the longarm tribe. So here’s the theory:

-When Brook was with the long arm tribe, namakura island( the island Brook landed on first http://onepiece.wikia.com/wiki/Namakura_Island )declared war on the longarms
-The people of namakura wanted revenge on the longarms and therefore invaded
-However knowing that their military was weaker and that they would never win, They had planned to suicide bomb themselves offering their bodies to satan
-When the namakurans met with the admiral of the longarm army, they bombed themselves
-After seeing the explosion, Brook ran to the scene; all the namakurans were dead but the longarms were still alive however they were all fatally wounded
-The admiral told Brook that he reminded him of his son, Scratchman Apu who happened to love music as much as Brook did. The admiral told Brook that Apu was loved throughout the tribe but secretly wanted to be a pirate, which the admiral disproved of, then he told Brook that one day he and the army came together to persuade Apu to give up being a pirate. Apu ran away from his father and the army, snuck into a boat and was never heard of again. The admiral along with the surviving members of the longarm army(who were about to die) began to cry and say that all they wanted to do was see Apu again, but they knew that that would never happen. Brook then tells the admiral along with the rest of the army about what his fruit can do, then the army begs Brook to make a contract with them after they die so that if Brook ever met Apu Brook could summon the army and they could finally see Apu.
-Brook grants their wish as they die; Brook then summons the all of the army and stores their souls in his sword. When Brook said the longarms sharpened his sword, he meant they enhanced it by giving the sword their souls.

This makes sense since it is called soul solid; in science a solid is the most dense form of matter. Soul solid is a sword that is dense with souls packed inside of it. Every soul is cold by nature, but when you pack so many souls into on sword; the temperature of the sword drops to below freezing temperatures.

TECHNIQUES:

Rebirth: Brook summons a soul from the underworld

Condemn: Brook attaches a soul to an earthly object

Devour: Brook combines his soul with the soul of the undead to create a “shadow assguard” version of Brook, Brook’s “shadow assguard” mode wouldn’t necessarily be larger than his original form, but will increase the power of Brook’s strength, speed, regeneration. This form will also give him all the haki of the soul he absorbed

Blizzard of a thousand souls: Brook creates a shockwave of ice out of soul solid

Purge: Brook purges a soul: in this process, Brook sends the soul to heaven by burning it; once a soul is purged it can no longer be used by Brook. This technique allows Brook to use fire

Hellfire slash: Brook purges all the soul in his soul solid to create a massive blast of fire, this is a 1-time attack that brook will use to finish Apu when they fight

Shinigami mode: due to consuming too many spirits, Brook’s body overflows with spirit energy giving him a cloak of energy. This greatly enhances all of Brook’s abilities

Anyways i believe that apart from the longarms, Brook will have many other souls; each soul has a different power and whenever Brook eats a soul he obtains a new power.

*Theory by knaal