Glassblower's Tools of the Master (Uncommon)

While using this tool as a spellcasting focus, you gain a +1 bonus to spell attack rolls. In addition, you can add this bonus to any ability check you make using this tool.

These special tools include the items needed to pursue a craft or trade. Proficiency with a set of artisan's tools lets you add your proficiency bonus to any ability checks you make using the tools in your craft. Each type of artisan's tools requires a separate proficiency.

Someone who is proficient with glassblower's tools has not only the ability to shape glass, but also specialized knowledge of the methods used to produce glass objects.

Components: The tools include a blowpipe, a small marver, blocks, and tweezers. You need a source of heat to work glass.

Arcana, History: Your knowledge of glassmaking techniques aids you when you examine glass objects, such as potion bottles or glass items found in a treasure hoard. For instance, you can study how a glass potion bottle has been changed by its contents to help determine a potion's effects. (A potion might leave behind a residue, deform the glass, or stain it.)

Investigation: When you study an area, your knowledge can aid you if the clues include broken glass or glass objects.

Identify Weakness: With 1 minute of study, you can identify the weak points in a glass object. Any damage dealt to the object by striking a weak spot is doubled.

Glassblower's Tools: