Arcane Firearm
5th-Level Artificer, Artillerist Feature
You know how to turn a wand, staff, or rod into an Arcane Firearm, a conduit for your destructive Spells. When you finish a Long Rest, you can use Woodcarver's Tools to carve Special sigils into a wand, staff, or rod and thereby turn it into your Arcane Firearm. The sigils disappear from the object if you later carve them on a different item. The sigils otherwise last indefinitely.
You can use your Arcane Firearm as a Spellcasting focus for your Artificer Spells. When you cast an Artificer spell through the firearm, roll a d8, and you gain a bonus to one of the spell's Damage Rolls equal to the number rolled.