Fighter

A Master of All Arms and Armor

Changes

Battle Arts

Level 1 feature, which replaces Weapon Mastery
Your training in martial combat allows you to use a number of special techniques called, Battle Arts. You gain 1 use of Battle Arts if you don’t already have any, and you gain additional uses equal to 1/2 of your Fighter level. You regain all expended uses when you finish a Short or Long Rest.
You prepare a number of Battle Arts from the list of options available to you, equal to half the amount of uses you have, rounded up. Whenever you finish a Long Rest, you can practice drills and change one of the Battle Arts you have prepared.
You can use a Battle Art you have prepared only while wielding one of the prerequisite weapons listed in its description, if any, and only if you have Proficiency with that weapon. If a Battle Art requires a saving throw and does not list a DC, it is: 6 + your Proficiency Bonus + the Ability Modifier you use for the weapon.

Multiclassing

Extra Attack

If you would gain the Extra Attack feature from a class and you already have it, you may instead gain a Fighting Style feat of your choice.