There is a new classification of weapons known as "natural weapons" which count as Simple Weapons. Many of the playable Races use natural weapons. Any race that uses a natural weapon (such as the Centaur's hooves) counts proficient in them and can learn to Master them as part of your mastered weapons.
Maim, Follow-Through, Snag, Vex
Finesse
1d8 Piercing Damage
Masteries
Maim
When you hit a creature with this weapon you cause an aggravating wound. A creature suffering this wound loses 1d4 hit points at the start of each of its turns. If the target is Bloodied they lose three times as much health. After each time they take this damage, they can make a Constitution saving throw, ending the effect on a success. If the target receives any healing this effect ends.
This damage increases to 1d6 when you reach 5th level, 1d8 at 9th level, 1d10 at 13th level and 1d12 at 17th level.
Follow-Through
If you roll a 1 or a 2 on this weapon’s damage dice you may instead treat the roll as having rolled its maximum value.
Snag
When you hit a creature with a melee attack using this weapon, you can force the creature to make a Strength saving throw. On a failure, they become grappled by you as if the weapon counted as a free hand. You can only grapple one creature at a time with the weapon and can only use the weapon to attack the grappled creature until the grapple ends. Once you have used this ability on a creature, you can not use it on that creature again until the start of your next turn.
If you grapple a creature who is more than 5ft away from you, you pull them to the closest unoccupied space adjacent to you. If you use the Topple Mastery on the same attack, only one save is made for both effects.
Vex
If you hit a creature with this weapon, the next attack roll against this creature before the end of your next turn gains Advantage.
Vex, Flurry, Riposte, Snag
Finesse, Light, Special
1d8 Piercing or Slashing Damage
Masteries
Vex
If you hit a creature with this weapon, the next attack roll against this creature before the end of your next turn gains Advantage.
Flurry
You may make the extra attack of the Light property with this weapon even if the other weapon you are wielding is not light. When you make the extra attack of the Light property with this weapon, you can make it as part of the Attack Action, instead of as a Bonus Action. You can still make this extra attack only once per turn.
Riposte
When a creature misses you with a melee attack you can use your Reaction to make one melee attack with this weapon against that creature if they are within your reach. If you used the Parry Mastery to cause an attack to miss you may make this attack as part of that same reaction.
Snag
When you hit a creature with a melee attack using this weapon, you can force the creature to make a Strength saving throw. On a failure, they become grappled by you as if the weapon counted as a free hand. You can only grapple one creature at a time with the weapon and can only use the weapon to attack the grappled creature until the grapple ends. Once you have used this ability on a creature, you can not use it on that creature again until the start of your next turn.
If you grapple a creature who is more than 5ft away from you, you pull them to the closest unoccupied space adjacent to you. If you use the Topple Mastery on the same attack, only one save is made for both effects.
Push, Follow-Through, Parry, Topple
Finesse
1d8 Piercing or Bludgeoning damage
Masteries
Push
If you hit a creature with this weapon, you can push the creature up to 10 feet away from you if it is no more than one size larger than you.
Follow-Through
If you roll a 1 or a 2 on this weapon’s damage dice you may instead treat the roll as having rolled its maximum value.
Parry
When you are hit with a melee attack by a creature you can see, you can use your reaction to increase your armor class against that attack by an amount equal to Your Dexterity Modifier, potentially causing the attack to miss. You can use this Mastery a number of times equal to your Proficiency Bonus, recovering all expended uses at the end of a short or long rest.
Topple
When you hit a creature with an attack using this weapon, you can force the creature to make a Strength saving throw. On a failed save, the creature falls prone. Once you have used this ability on a creature, you can not use it on that creature again until the start of your next turn.
If you use the Snag Mastery on the same attack, only one save is made for both effects.
Rebuke, Bash, Push, Topple
Finesse
1d8 Piercing or Bludgeoning Damage
Masteries
Rebuke
When a creature enters your reach they trigger an opportunity attack, if you choose to attack you must use this weapon to make the attack.
Bash
You may use a Bonus Action to shove or make a special attack. This attack uses the Properties of the weapon or shield, except that it may only target a single creature, deals a d4 of bludgeoning damage and cannot be a Power Attack.
Push
If you hit a creature with this weapon, you can push the creature up to 10 feet away from you if it is no more than one size larger than you.
Topple
When you hit a creature with an attack using this weapon, you can force the creature to make a Strength saving throw. On a failed save, the creature falls prone. Once you have used this ability on a creature, you can not use it on that creature again until the start of your next turn.
If you use the Snag Mastery on the same attack, only one save is made for both effects.
Snag, Bash, Lunge, Parry
Finesse
1d8 Piercing or Bludgeoning Damage
Masteries
Snag
When you hit a creature with a melee attack using this weapon, you can force the creature to make a Strength saving throw. On a failure, they become grappled by you as if the weapon counted as a free hand. You can only grapple one creature at a time with the weapon and can only use the weapon to attack the grappled creature until the grapple ends. Once you have used this ability on a creature, you can not use it on that creature again until the start of your next turn.
If you grapple a creature who is more than 5ft away from you, you pull them to the closest unoccupied space adjacent to you. If you use the Topple Mastery on the same attack, only one save is made for both effects.
Bash
You may use a Bonus Action to shove or make a special attack. This attack uses the Properties of the weapon or shield, except that it may only target a single creature, deals a d4 of bludgeoning damage and cannot be a Power Attack.
Lunge
When you make a melee attack on your turn with this weapon you may increase your reach by 5ft.
Parry
When you are hit with a melee attack by a creature you can see, you can use your reaction to increase your armor class against that attack by an amount equal to Your Dexterity Modifier, potentially causing the attack to miss. You can use this Mastery a number of times equal to your Proficiency Bonus, recovering all expended uses at the end of a short or long rest.