Tavern Brawler

Accustomed to rough-and-tumble Fighting using whatever Weapons happen to be at hand, you gain the following benefits:

Increase your Strength or Constitution score by 1, to a maximum of 20.
You are proficient with improvised Weapons.
Your unarmed strikes use a d4 for damage.
When you hit a creature with an Unarmed Strike or an Improvised Weapon on Your Turn, you can use a Bonus Action to attempt to grapple the target. For more, see the Grappling action and Grappled condition.