Blade Mastery. A melee weapon deals one extra die of its damage when the swordmaster hits with it (included in the attack).

Sure-Footed. The swordmaster has advantage on Strength and Dexterity saving throws made against effects that would knock it prone.

Master Duellist (Recharges 5-6). If the swordmaster misses with an attack roll, he can roll it again with advantage.

Multiattack. The swordmaster makes four melee attacks.

Longsword. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) slashing damage or 16 (2d10 + 5) slashing damage if used with two hands.

Riposte. The swordmaster adds 4 to its AC against one melee attack that would hit it. To do so, the swordmaster must see the attacker and be wielding a melee weapon. If the attack misses, the swordmaster immediately as part of the reaction makes an opportunity attack against the opponent that missed.

The swordmaster can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The swordmaster regains spent legendary actions at the start of its turn.

Attack. The swordmaster makes one weapon attack.

Maneuver. The swordmaster moves up to half its speed without provoking opportunity attacks.

Recovery (Costs 2 Actions). The swordmaster regains 7 (1d8 + 3) hit points.