The Magical Harp is a magical-based weapon that produces musical notes that bounce off of walls, causing damage to enemies upon contact.
The speed of these notes varies, dependent on how close your cursor is to your character, ranging from moderately slow to very fast. Using this, the player can either cause lots of damage to a single enemy as the musical note passes through the enemy slowly, or deal damage to multiple enemies with a swift barrage of fast-moving notes.
Due to the fact it has no knockback to begin with, this weapon cannot be reforged to Mythical. Instead, try reforging it to Murderous as it is the highest tier without knockback modifiers or Mystic if you want a damage increase and lower mana consumption.