This longsword’s blade is crafted from jagged violet crystal. When you hold it close to your ear, you hear a faint hum.

A crystal echoblade normally functions as a +1 longsword, but is enhanced by your musical ability. If you use your bardic music ability while wielding the weapon, the blade resonates in harmony, dealing additional sonic damage on each attack equal to half your bard level.

Prerequisites: Craft Magic Arms and Armor, bardic music.
Cost to Create: 2,000 gp (plus 310 gp for base item), 160 XP, 4 days.