One of the seventeen Major Guilds of the Courts.

Beastmastery involves altering something’s base form, as opposed to Shapeshifting, which involves altering the surface form. It appears that Shapeshifting is easier to do to yourself, and Beastmastery is easier to do to someone else.

It appears that few people are skilled in both Beastmastery and Shapeshifting. Exceptions include Norton and Mikail.