Especialized training

you have dedicated to improve yourself via intense training.

Increase one ability score of your choice betwen streghr , dexterity or constitution by 1, to a maximum of 20

you can choose a  Fighting Style .

Archery

 You gain a +2 bonus to attack rolls you make with ranged weapons.

 Defense

 While you are wearing armor, you gain a +1 bonus to AC.

 Dueling

 When you are wielding a melee weapon in one hand and no other weapons, you gain a +2 bonus to damage rolls with that weapon.

 Great Weapon Fighting

 When you roll a 1 or 2 on a damage die for an attack you make with a melee weapon that you are wielding with two hands, you can reroll the die and must use the new roll, even if the new roll is a 1 or a 2. The weapon must have the two-handed or versatile property for you to gain this benefit.

 Protection

 When a creature you can see attacks a target other than you that is within 5 feet of you, you can use your reaction to impose disadvantage on the attack roll. You must be wielding a shield.

 Two-Weapon Fighting

 When you engage in two-weapon fighting, you can add your ability modifier to the damage of the second attack.