The Seven Sins
The Seven Sins is a Hardmode bow that can be dropped from Infernon. On every 5th arrow fired, it will summon a Fire Lash projectile attached to a chain that protrudes from the bow a short distance quickly, then comes back. The Fire Lash can pierce many enemies, going forward and coming back. When an enemy is hit by the Lash head, it will inflict the debuff Combustion Blaze on said enemy. The weapon is capable of autofire.
Its best modifier is Unreal.