The Full Moon Sword is a powerful, lvl30 weapon, caracterised by its bonus stats (Skill Damage(max 35%) and Damage(max 60%) bonus)

The Full Moon Sword is not bought in the item shop and can be found by monster drops(savage and bestials found in map 2 and Nula Valley or from cursed alpha blue wolves in the third village) players often sell them at either +0-2 or at +9 its rare to see players sell from +3 - +8 since they aren't worth using at their prices when under +9.

The Full Moon Sword is a unique weapon in that doesn't require items in order to upgrade, but costs more money.

A Full Moon Sword can be used untill level65 or so if it is +9 and good stats/damage.