Your body is a deadly weapon, granting you the following benefits.
Unarmed Strike
You can roll 1d6 in place of the normal damage of your Unarmed Strike. This die becomes 1d8 at Vagabond level 5, 1d10 at Vagabond level 11, and 1d12 at Vagabond level 17. At Vagabond level 6, your Unarmed Strike can deal your choice of Force damage or its normal damage type.
Brute Force
The first creature you hit on each of your turns with an Unarmed Strike takes extra damage equal to a roll of your Unarmed Strike damage die.
Unarmored Defense
While you aren't wearing any armor, your base Armor Class equals 10 plus your Dexterity and Constitution modifiers. You can use a Shield and still gain this benefit.