One-Blade Duelist

One-Blade Duelists gain the following class features at the following levels:

Level 3: Simplicity Boost, Defensive Stance

Level 7: Willful Strike

Level 10: Careless Stance

Level 15: Wind Slash

Level 18: Enduring Stance

Level 3: Simplicity Boost

While wielding a one-handed melee weapon in one hand and keeping the other hand free, you have advantage on attack rolls made with that weapon. In addition, if you are wielding a one-handed weapon with the versatile trait but not actively using the versatile trait and you have your other hand free, the versatile trait counts as active.

Level 3: Defensive Stance

As a bonus action at the start of combat while wielding a one-handed melee weapon and having the other hand free, you can enter a defensive stance that grants you a bonus to armor class equal to your proficiency bonus for the duration of the combat. While Defensive Stance is active, no other Stance from future subclass features can be active without spending a bonus action to change stance. You can only change Stances once per combat.

Level 7: Willful Strike

Your weapon attacks while wielding a one-handed melee weapon in one hand and keeping the other hand free count as magical and silver for the purpose of overcoming resistances. At level 9, they also count as adamantine for the purpose of overcoming resistances.

Level 10: Careless Stance

While wielding a one-handed melee weapon in one hand and keeping the other hand free when combat starts, you can use a bonus action to enter a stance that lets you triple your Strength or Dexterity modifier for melee weapon damage but decreases your armor class by 3. This lasts for the duration of the combat, and another Stance ability cannot be active while Careless Stance is active without using a bonus action to end Careless Stance and change Stances.

Level 15: Wind Slash

While wielding a one-handed melee weapon in one hand and keeping the other hand free, the weapons reach is increased to 15 feet rather than the usual 5 of a melee weapon without reach.

Level 18: Enduring Stance

As a bonus action at the start of combat while wielding a one-handed melee weapon in one hand and keeping the other hand free, you can enter a Stance that makes it so you are unable to be reduced to below 1 hit point the first three times you are damaged enough to do so. This Stance cannot be used more than once per combat and can't be switched into.