Hydra

The Hydra is a craftable Hardmode classless weapon that deals massive damage to all enemies. When used, it fires fifteen extremely fast pellets that create small explosions when hitting an enemy or a tile. The damage it deals is proportional to the hit enemy's max health, making it incredibly effective against enemies with large amounts of health, such as late-game bosses.

It exclusively uses Explosive Shotgun Shells as ammo, of which there are a limited supply per world.

Once a boss is spawned, the Hydra is only fireable once until the boss is defeated or until it despawns after the player is killed.

Trivia

 * The weapon is a reference to the gun of the same name from the game Resident Evil 5.