Dragon bolts (e)
From Emps-World Wiki
Dragon bolts (e) can be created by tipping Rune bolts with Dragon bolt tips and then enchanting them with the Lvl-5 Enchant spell from your Normal spellbook.
These bolts have a 33% chance on hit to inflict an additional dragonbreath attack, that is able to deal a lot of damage. The effect does not proc if your target is wearing a Dragonfire shield, if your target is a dragon or a fire-based creature.
They give +101 ranged strength and can be used with high level crossbows.