Arc-en-Ciel

The Arc-en-Ciel is a craftable Hardmode magic weapon. It fires a rainbow-colored beam of lost souls that pierces an unlimited amount of enemies, dealing damage over time. Its lasts for five seconds before phasing out. It inflicts the Electrified and Holy Light debuffs.

Its best modifier is Mythical.

Trivia

 * The word "Arc-en-Ciel" means "rainbow" in French.