As you build your Demon Slayer, remember that you need to have had a special kind of training to become one.

Demon Slayer Senses

When you choose this archetype at 3rd level, you gain proficiency in Perception, with advantage on checks relying on hearing, smell, touch or sight.

Total Concentration Breathing

When you choose this archetype at 3rd level, you gain access to Total Concentration Breathing.

Total Concentration Breathing (の Zen Shūchū no Kokyū), an advanced application of Breathing, is a state where a Breathing Style user inhales the maximum amount of oxygen within a specific breath pattern to raise their physical and mental prowess to their utmost limits. It is often used by Demon Slayers for a brief moment to temporarily boost their combat capabilities to prepare a decisive attack.

As a bonus action, a Demon Slayer can use the Total Concentration Breathing feature. Whilst maintaining concentration, a Demon Slayer gains the following benefits for up to 1 minute.

• Your speed increases by 10 feet while you are not wearing armor or wielding a shield.
• Immediately after you take the Attack action on your turn, you can make an additional attack as a bonus action.
• You gain a number of temporary hit points equal to your  level + your Constitution modifier (minimum of 5) for the duration of your Breathing.
• You gain resistance to poison damage.
• You gain advantage on Wisdom perception checks.
• If you fall unconscious whilst using Total Concentration Breathing, you can use your reaction to make your concentration check with disadvantage. On a success, you remain conscious, but prone, with 1 hit point.

Breathing Style

Beginning at 3rd Level, you gain access to three Breathing Style Techniques.

Breathing Styles are swordsmanship forms practiced and taught by the Demon Slayer Corps. The Breathing Styles make use of specific and concentrated breath patterns, which increase the user's lung capacity and amount of oxygen in the blood. This increase of oxygen allows the user to enhance their physical abilities and mental concentration, allowing them to fight on par with Demons, whose physical prowess surpasses that of the average human.

All known Breathing Styles currently taught within the Demon Slayer Corps are derived from the Sun Breathing, the first one ever created.

When using one of the Breathing Style Techniques, a Demon Slayer may add their Wisdom modifier to their damage rolls, in addition to their dexterity modifier. The damage type relates to the Demon Slayer's chosen Breathing Style.

BREATHING STYLE	DAMAGE TYPE
Flame	Fire
Water	Cold
Thunder	Thunder/Lightning
Wind	Thunder/Force
Love	Radiant
Insect	Poison
Serpent	Acid/Poison
Mist	Force/Thunder
Beast	Slashing
Stone	Bludgeoning

 

Technique Forms

You gain a number of charges equal to your Demon Slayer level. As a bonus action, the Demon Slayer can use one of the following forms.

1st Form (1 Charge). The Demon Slayer gains an additional 40ft of movement, without provoking any attacks of opportunity, before striking an opponent with a melee weapon attack. On a hit, the creature take 2d8 damage. 

2nd Form (2 Charges). The Demon Slayer unleashes a flurry of attacks and can use one of two attacks. 

• The Demon Slayer makes a flurry of attacks in all direction, all creatures within 5ft must make a Dexterity Saving against the Demon Slayer's DC (Wisdom), or take 2d8 damage. On a save, the creature takes half damage.
• The Demon Slayer makes a flurry of attacks against a single creature, making an additional melee weapon attack against a creature for 3d8 damage.

3rd Form (3 Charges). The Demon Slayer is shrouded in the energy of their breathing style, making a weapon attack against a single creature for 4d8 damage. In addition, the Demon Slayer gains +2 to their AC until the end of their next turn.

You regain all expended uses when you finish a long rest.

Slow Fall

Beginning at 3rd Level, you can use your Reaction when you fall to reduce any Falling damage you take by an amount equal to five times your Demon Slayer level.

Advanced Breathing Style

Beginning at 7th Level, you gain access to an additional three Breathing Style Techniques. Your number of uses is increased by your Wisdom modifier. Additionally, you regain all expended uses when you finish a short or long rest.

Breathing Styles are swordsmanship forms practiced and taught by the Demon Slayer Corps. The Breathing Styles make use of specific and concentrated breath patterns, which increase the user's lung capacity and amount of oxygen in the blood. This increase of oxygen allows the user to enhance their physical abilities and mental concentration, allowing them to fight on par with Demons, whose physical prowess surpasses that of the average human.

All known Breathing Styles currently taught within the Demon Slayer Corps are derived from the Sun Breathing, the first one ever created.

When using one of the Breathing Style Techniques, a Demon Slayer may add their Wisdom modifier to their damage rolls, in addition to their dexterity modifier. The damage type relates to the Demon Slayer's chosen Breathing Style.

Technique Forms

You gain a number of charges equal to your Demon Slayer level plus your Wisdom modifier. As a bonus action, the Demon Slayer can use one of the following forms.

4th Form (4 Charges). To Be Confirmed.

5th Form (5 Charges). To Be Confirmed.

6th Form (6 Charges). To Be Confirmed.

You regain all expended uses when you finish a short or long rest.

Total Concentration: Constant

Total Concentration: Constant (全ぜん集しゅう中ちゅう・常じょう中ちゅう Zen Shūchū Jōchū?) is a Total Concentration Breathing state during the morning, noon, and night, and even while asleep that Advanced Demon Slayers, such as Hashira, can constantly maintain. There is an immense difference in strength, speed, and stamina between someone who can maintain Total Concentration Breathing at all times and someone who cannot.

Learning to maintain a constant state of Total Concentration Breathing requires tremendous effort, though, the skill itself is noted to be quite elementary despite the required effort.

The training process involves blowing into a special type of super durable gourd. The objective is to blow into the gourd with enough strength to make the gourd break apart. As training progresses, the gourd is replaced by larger and larger variations of the same type of gourd. The largest known gourd is about the size of a chair.

Master Breathing Styles

Beginning at 15th Level, you gain access to an additional three Breathing Style Techniques. Your number of uses is increased by your half of your proficiency bonus rounded down. Additionally, you regain all expended uses when you finish a short or long rest.

Breathing Styles are swordsmanship forms practiced and taught by the Demon Slayer Corps. The Breathing Styles make use of specific and concentrated breath patterns, which increase the user's lung capacity and amount of oxygen in the blood. This increase of oxygen allows the user to enhance their physical abilities and mental concentration, allowing them to fight on par with Demons, whose physical prowess surpasses that of the average human.

All known Breathing Styles currently taught within the Demon Slayer Corps are derived from the Sun Breathing, the first one ever created.

When using one of the Breathing Style Techniques, a Demon Slayer may add their Wisdom modifier to their damage rolls, in addition to their dexterity modifier. The damage type relates to the Demon Slayer's chosen Breathing Style.

Technique Forms

You gain a number of charges equal to your Demon Slayer level plus your Wisdom modifier. As a bonus action, the Demon Slayer can use one of the following forms.

7th Form (7 Charges). To Be Confirmed.

8th Form (8 Charges). To Be Confirmed.

9th Form (9 Charges). To Be Confirmed.

You regain all expended uses when you finish a short or long rest.

Hashira

To be confirmed.