Board Thread:Game Help/@comment-26179841-20150701022217/@comment-3157150-20150728001825

Anything that deals Piercing damage is highly recommended to defeat the Destroyer. It trivializes the fight dramatically. Here are some examples of weapons that could work for you: That's just some of the examples.
 * Emerald Staff
 * Ruby Staff
 * Diamond Staff
 * Laser Rifle
 * Magic Dagger
 * Unholy/Jester's Arrows
 * Meteor Bullets
 * A Spear Weapon
 * Any Flail