Paladin's Hammer

Rare Drop from the Paladin, who is only found in Hardmode Dungeon. It is an extremely fast returning boomerang, which has one of the shortest ranges for a boomerang-classed weapon, but if it gets the proper equipment, one can find this weapon to be one of the deadliest weapons they have ever come across (Up to 210 Damage with the right equipment). This weapon hits through enemies, proceeding until they hit a solid wall or reach the limit it can go before returning, allowing for insane accumulative damage against enemies such as the Destroyer. When coupled with the Frost Armor's inflicted Frostbite debuff, which affects each segment of worm enemies, a single player can tear the Destroyer down in around half a minute.

Trivia

 * The item is likely a reference to Diablo 2, specifically to the Paladin class' Hammer of Wrath ability which produces a similar effect of magical, flying hammers.