Excalibur

is a bladeless sword and the personal weapon of Arthur Boyle. If wielded by a Third Generation, the user can mold a concentrated blade of plasma, a state of matter, created by heating up flames to extreme temperatures on the hilt, making it a plasma blade in the process. Such process requires the wielder to use their Ignition Ability. As noted by Takehisa Hinawa, the swordplay using Excalibur is equivalent to plasma cutting.

Appearance
Excalibur is a peculiarly designed sword, consisting of only a hilt. The hilt greatly resembles a cross, with a spiral stripped grip and end and its sheath is of plain light material.

Trivia

 * The weapon is named after Excalibur, a legendary sword used by King Arthur, which was attributed with magical powers.