Add these onto the Parent Race
Ability Scores
Str or Con +1
Musclebound
You gain proficiency in the Athletics Skill. Your proficiency bonus is doubled for any Strength (Athletics) ability check you make to initiate, maintain, or break free of a grapple.
Charging Pin
When you use your bonus action to move as a part of the Agressive trait, as a part of that bonus action you may try to grapple a creature that is large or smaller in your path. Make an Athletics contest with the creature. If you succeed, you crash into the creature. Both you and the creature are knocked prone. The creature is also grappled and takes bludgeoning damage equal to half your level + your Strength modifier. On a failed contest you miss and land prone 10 feet past the creature.