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

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

Ability Checks

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.

Actions and Activities

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

Activity DC
Identify source of glass 10
Determine what a glass object once held 20

SCULPTURE

You provide one pound of clay (Pottery Kit), glass (Glassblowing Kit), marble (Masonry Kit), or wood (Woodcarving Kit), and make a Dexterity check with the related tool to attempt to create a sculpture with the features of the area. If you have proficiency with the tool and in the Sleight of Hand skill, you have advantage on the check.