Soul Solid

Soul Solid is the name of Brook's cane sword.

Profile and Stats

 * Full Name: Soul Solid
 * Alias: Freezing Sword
 * Origin: One Piece
 * Age: Unknown
 * Classification: Shikomizue
 * Wielders: Brook
 * Powers and Abilities: Superhuman Physical Characteristics, Ice Manipulation, Music Manipulation
 * Weaknesses:
 * Notable Attacks/Techniques:

Power Ranking

 * Class:
 * Attack Potency:
 * Speed:
 * Durability:
 * Range:
 * Fighting Ability

Appearance
It looks like a regular purple cane, with the hilt of the sword also serving as the handle of the cane.

Abilities
Not much is known about the quality of this sword itself, except that Brook mentioned the Longarm Tribe sharpened the sword. Brook is able to enhance its power by enveloping the blade with his soul using his Devil Fruit ability. The energy of his soul brings the "very cold of the underworld into this world", resulting in the sword being freezing cold. Due to this feature, Brook gave it the epithet of "Freezing Sword". He would utilize this enhanced blade with his swordsmanship.

Swordsmanship
Brook uses an unnamed form of swordsmanship that resembles classical fencing. Its attacks consist of fast cutting techniques used by Brook's Kingdom's Assault Squad. The majority of the techniques are named after songs and dances coupled with fencing terms usually spoken in French but they sometimes make use of Japanese.

This sword discipline was also used by Ryuma (due to Brook's shadow that was in him), who had also demonstrated most of the known attacks at a level far superior to Brook's. While these techniques are deadly in the hands of a "speed-type" swordsman like Brook, it has been shown to be absolutely destructive when used by a "power-type" swordsman like Ryuma.

After the timeskip, Brook manages to control the energy of his soul and is even able to bring the "very cold of the underworld" to his attacks. By doing this, his attacks gain freezing effects and he can combine his techniques with his musical abilities too.

Music
Brook also uses his sword to play on his violin. He can combine his swordsmanship abilities with this music and hypnotize his enemies. By learning the true nature of his Devil Fruit, traveling around the world during two years, he managed to feel the souls of others and combined with his music he can move them. He uses this ability to control his enemies via hypnotic music.