Ice Sickle

The Ice Sickle is a weapon randomly dropped by Armored Viking in the Underground Snow Biome. When used it shoots a moving projectile that will either shatter by colliding with blocks or reach a fixed distance from the player. This projectile will then spin in place, hitting multiple enemies in a similar fashion to the Vilethorn before disappearing after a couple of seconds. This makes it a very effective weapon for close-range area control, as most enemies will be knocked back and take high damage by trying to pass through the hovering projectile. It's also potent against slow bosses like the Wall of Flesh or The Destroyer that take multiple hits from each projectile. There is a limit to how many projectiles can be fired, depending on a specific cooldown, but many "Melee Speed" accessories and/or equipments are needed in order to reach it.

The only downside is that the projectiles will not travel very far before halting in midair, effectively making it function as a ranged weapon with a very short range.

Trivia
The name "Ice Sickle" is a pun of icicle.