Starfury

The Starfury is a sword which is usually found in chests on floating islands. Swinging the sword summons three stars to fall from the sky to wherever your cursor is pointed. However, this effect is not available while indoors or underground as the stars do not pass through solid objects. The sword also can't be swung without sufficient mana. The sword deals a base damage of 15, while the stars deal additional damage. It is best used outside against a large number of targets or while fighting a boss.

A recommended strategy for use is to put on meteor armor to generate mana, and spam the attack on enemies during a bloodmoon or goblin raid, especially if wearing the wizard hat which increases magic damage, if you do this you can deal some serious damage, even without the mana regeneration it is fairly cheap after you have crafted several mana crystals!

Below is a video looking at the Starfury: