Lucrecia

The Lucrecia is a craftable Hardmode shortsword that auto-swings. When swung, it fires a straight double helix directly left or right in the direction of the cursor which passes through blocks. If an enemy is hit by either the projectile or the sword itself, the player will gain 5 immunity frames. The weapon costs 5 HP per swing.

Trivia

 * Despite being the size of an average broadsword, this weapon stabs horizontally in front of the player like a shortsword would.
 * If the player is killed by the damage inflicted upon using the weapon, the death message "'s DNA was destroyed." will display.