Rook is a summon of Ham's Personal Attribute and Conceptual Magic, Rule - Chess.^[1]

 Appearance

Rook is a gigantic armoured warrior of white and black with a black plume.

Personality

As a summon, Rook follows the command of Ham.^[1] It is unknown if he has any autonomous thinking.

Abilities

Although very little of Rook's power has been revealed, he appears to be a very powerful summon. It was able to kill Nightmare Oz.^[1]

Swordsmanship: The Rook has an extremely high level swordsmanship. An unskilled slash of the Rook killed Nightmare Oz & Goldy.^[1]

Combat Style

The Pawn is a close range fighter that closes down the targets in order to strike them with his large broad sword.

Items

Weapons

• Broad Sword: The Rook equipped a large Broad Sword which had a blade at least 7 times bigger than a normal sized human.^[1]

History

Season 2

Beyond the Boundary Arc

Rook was summoned by Ham and it attacked Nightmare Oz.^[1]

Notes & Trivia

• 

  The rook (/rʊk/; ♖,♜) is a piece in the game of chess resembling a castle. Formerly the piece (from Persian رخ rokh/rukh) was called the tower, marquess, rector, and comes (Sunnucks 1970). The term castle is considered to be informal, incorrect, or old-fashioned.

• 

  The white rooks start on squares a1 and h1, while the black rooks start on a8 and h8. The rook moves horizontally or vertically, through any number of unoccupied squares (see diagram). As with captures by other pieces, the rook captures by occupying the square on which the enemy piece sits. The rook also participates, with the king, in a special move called castling.
  

References