The Mutilator

The Mutilator is a post-Moon Lord broadsword. It does not fire a projectile, but striking an enemy below 20% life will cause a "bloodsplosion" to occur that spawns multiple hearts. As with most Bloodstone weapons, it has very high damage for its tier and swings quickly compared to other similar swords.

Trivia

 * The Mutilator is the only weapon to perform lifesteal by spawning hearts.