Giant

You've learned to use your size to your advantage. You gain the following benefits:

• Increase your Strength or Consititution score by 1, to a maximum of 20.
• You have advantage on Strength (Athletics) checks when attempting to grapple a creature if they are at least one size smaller than you.
• You can make improvised melee weapon attacks with a creature you are grappling if they are at least one size smaller than you. When making an attack in this way, the grappled creature takes 1d4 bludgeoning damage.
• When you score a critical hit using a creature you are grappling, the grappled creature is stunned until the start of your next turn.