Crystal Vile Shard

The  is a ranged spell that can be found upon killing Hallowed Mimics. It inflicts 19 Damage, has slow speed, and costs 13 Mana to use.

Like the Vilethorn the Crystal Vile Shard will create a piercing spear and go through walls, it is able to strike multiple enemies. Since it is the upgraded Vilethorn it could be useful against The Destroyer, but a Magical Harp would be better.