Legend stated that once the blade and the northern god became one, he was able to cast his his own phase of the moon. Overall controlling the moon's phase. In the journal it also states, that when the blade and the user becomes one he/she, when swinging the blade it makes slashes that resembles the Crescent moon. The journal then goes on to say, the when the crescent makes contact with the foe, it sucks them inside and sends them in the depths of the galaxy.