The New Moon is almost entirely grey, symbolizing that it is the most basic of Saïx's weapons through the use of achromatic colors. It has a short, light grey handle with a black spike set in its pommel. It has a large, two-pronged blade. The base of the blade sports a short spike on either of its sides. The tip of each prong is flat and slats inward. The entirety of the blade is light grey and has grey edges.
When Saïx enters his berserk state, the entire blade gains a thick, white additional blade around it. This new blade has thin, light blue edges.
A "new moon" is a lunar phase where the moon is hardly visible in the sky due to no sunlight reflecting on the side that faces the Earth.
New Moon's normal ground combo consists of two identical, fast downward diagonal slashes followed by a leap forward and a more powerful downward diagonal slash. The -Combo can be activated after the second attack, and consists of a dash forward, followed by a 360° spinning swipe.
The aerial combo consists of a sideways slash, followed by an upward diagonal slash and a more powerful downward vertical slash.
New Moon's combo finisher consists of Saïx jumping higher than usual, and coming down with an aerial strike.