Starting at 3rd level, you can use your reaction to deflect or catch the missile when you are hit by a ranged weapon attack. When you do so, the damage you take from the attack is reduced by 1d10 + your Dexterity modifier + your monk level.
If you reduce the damage to 0, you can catch the missile if it is small enough for you to hold in one hand and you have at least one hand free. If you catch a missile in this way, you can spend 1 ki point to make a ranged attack with a range of 20/60 using the weapon or piece of ammunition you just caught, as part of the same reaction. You make this attack with proficiency, regardless of your weapon proficiencies, and the missile counts as a monk weapon for the attack.
Starting at 2nd level, your speed increases by 10 feet while you are not wearing armor or wielding a shield. This bonus increases when you reach certain monk levels, as shown in the Monk table.
At 9th level, you gain the ability to move along vertical surfaces and across liquids on your turn without falling during the move.
When you make an unarmed strike with the arms on your turn, your reach for it is 5 feet greater than normal.
The unarmed strikes you make with the arms can use your Wisdom modifier in place of your Strength or Dexterity modifier for the attack and damage rolls, and their damage type is force.
At 3rd level, your mastery of your ki allows you to summon a portion of your astral self. As a bonus action, you can spend 1 ki point to summon the arms of your astral self. When you do so, each creature of your choice that you can see within 10 feet of you must succeed on a Dexterity saving throw or take force damage equal to two rolls of your Martial Arts die.
For 10 minutes, these spectral arms hover near your shoulders or surround your arms (your choice). You determine the arms' appearance, and they vanish early if you are incapacitated or die.
While the spectral arms are present, you gain the following benefits:
You can use your Wisdom modifier in place of your Strength modifier when making Strength checks and Strength saving throws.
You can use the spectral arms to make unarmed strikes.
Ki save DC = 8 + your proficiency bonus + your Wisdom modifier
Flurry of Blows. Immediately after you take the Attack action on your turn, you can spend 1 ki point to make two unarmed strikes as a bonus action.
Patient Defense. You can spend 1 ki point to take the Dodge action as a bonus action on your turn.
Step of the Wind. You can spend 1 ki point to take the Disengage or Dash action as a bonus action on your turn, and your jump distance is doubled for the turn.
Starting at 2nd level, your training allows you to harness the mystic energy of ki. Your access to this energy is represented by a number of ki points. Your monk level determines the number of points you have, as shown in the Ki Points column of the Monk table.
You can spend these points to fuel various ki features. You start knowing three such features: Flurry of Blows, Patient Defense, and Step of the Wind. You learn more ki features as you gain levels in this class.
When you spend a ki point, it is unavailable until you finish a short or long rest, at the end of which you draw all of your expended ki back into yourself. You must spend at least 30 minutes of the rest meditating to regain your ki points.
Some of your ki features require your target to make a saving throw to resist the feature's effects. The saving throw DC is calculated as follows:
At 1st level, your practice of martial arts gives you mastery of combat styles that use unarmed strikes and monk weapons, which are shortswords and any simple melee weapons that don't have the two-handed or heavy property.
You gain the following benefits while you are unarmed or wielding only monk weapons and you aren't wearing armor or wielding a shield:
You can use Dexterity instead of Strength for the attack and damage rolls of your unarmed strikes and monk weapons.
You can roll a d4 in place of the normal damage of your unarmed strike or monk weapon. This die changes as you gain monk levels, as shown in the Martial Arts column of the Monk table.
When you use the Attack action with an unarmed strike or a monk weapon on your turn, you can make one unarmed strike as a bonus action. For example, if you take the Attack action and attack with a quarterstaff, you can also make an unarmed strike as a bonus action, assuming you haven't already taken a bonus action this turn.
Starting at 17th level, your connection to your astral self is complete, allowing you to unleash its full potential. As a bonus action, you can spend 5 ki points to summon the arms, visage, and body of your astral self and awaken it for 10 minutes. This awakening ends early if you are incapacitated or die.
While your astral self is awakened, you gain the following benefits.
Armor of the Spirit. You gain a +2 bonus to Armor Class.
Astral Barrage. Whenever you use the Extra Attack feature to attack twice, you can instead attack three times if all the attacks are made with your astral arms.
Starting at 11th level, when you have both your astral arms and visage summoned, you can cause the body of your astral self to appear (no action required). This spectral body covers your physical form like a suit of armor, connecting with the arms and visage. You determine its appearance.
While the spectral body is present, you gain the following benefits.
Deflect Energy. When you take acid, cold, fire, force, lightning, or thunder damage, you can use your reaction to deflect it. When you do so, the damage you take is reduced by 1d10 + your Wisdom modifier (minimum reduction of 1).
Empowered Arms. Once on each of your turns when you hit a target with the Arms of the Astral Self, you can deal extra damage to the target equal to your Martial Arts die.
When you reach 6th level, you can summon the visage of your astral self. As a bonus action, or as part of the bonus action you take to activate Arms of the Astral Self, you can spend 1 ki point to summon this visage for 10 minutes. It vanishes early if you are incapacitated or die.
The spectral visage covers your face like a helmet or mask. You determine its appearance.
While the spectral visage is present, you gain the following benefits.
Astral Sight. You can see normally in darkness, both magical and nonmagical, to a distance of 120 feet.
Wisdom of the Spirit. You have advantage on Wisdom (Insight) and Charisma (Intimidation) checks.
Word of the Spirit. When you speak, you can direct your words to a creature of your choice that you can see within 60 feet of you, making it so only that creature can hear you. Alternatively, you can amplify your voice so that all creatures within 600 feet can hear you.
A flash of light streaks toward a creature of your choice within range. Make a ranged spell attack against the target. On a hit, the target takes 4d6 radiant damage, and the next attack roll made against this target before the end of your next turn has advantage, thanks to the mystical dim light glittering on the target until then.
At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 1st.