An ancient relic from an advanced precursor race that had destroyed itself in war, previously used by knights and having taken damage to it's memory banks, this will find you as a suitable master or mistress. You can learn Ancient Belkan magic from this, but it's only capable of creating an artificial D-rank linker core due to low power which you'll need to use to power this, although you may use other magic sources and improve your magic power through training unlike Midchildan artificial linker cores.