You can use your action to make a melee attack against any number of creatures within 5 feet of you, with a separate attack roll for each target.

You can use your action to spend 4 ki and become invisible for 1 minute. During this time, you have resistance to all damage except force damage. You can also spend 8 ki to cast the astral projection spell without material components.

You can use an action to enter a state of automatic focus. While active, Deflect Missiles requires no action, you have advantage on Dexterity-based attacks, disadvantage applies to melee attacks against you, and you gain the benefits of the Alert feat. You have advantage on Dexterity checks and saving throws, your movement speed is doubled, your jump distance is tripled, and attacks that hit you may be negated by an unmodified d20 roll that meets or exceeds the opponent's unmodified attack roll. You make four attacks with the Attack action and four attacks with Flurry of Blows. Nothing in this form requires ki. You regain all ki when entering the state, lose 1 ki at the end of each round, and if you have no ki remaining, you must make a Constitution saving throw each round. On a failure, the state ends, you gain 4 levels of exhaustion, and take 10d10 necrotic damage.

Make one additional unarmed strike as a bonus action after using the Attack action with an unarmed strike or monk weapon.

Make two additional unarmed strikes. These attacks can be made with advantage by spending 1 ki.

Take the Disengage or Dash action as a bonus action. Spending 1 ki can amplify the movement, doubling speed and tripling jump distance.

Take the Dodge action as a bonus action. Spending 1 ki can amplify it so that creatures that miss you become vulnerable to retaliatory attacks.

You gain proficiency with unarmed strikes and monk weapons. Your unarmed strikes deal 1d10 damage at 20th level, and you can use Dexterity instead of Strength for attack and damage rolls. When you use the Attack action with an unarmed strike or monk weapon, you can make one unarmed strike as a bonus action.

Reduce damage from a ranged weapon attack by 1d10 + 25. If reduced to 0, catch the projectile and spend 1 ki to throw it back.

You can use your reaction to reduce falling damage by 100 points.

Spend 1 ki after hitting with a melee weapon attack to force a DC 19 Constitution saving throw. On a failure, the target is stunned until the end of your next turn.

You gain 20 ki points, recovered after a short or long rest. Ki powers your Flurry of Blows, Patient Defense, and Step of the Wind, along with other monk abilities. Your ki save DC is 19.

You can move along vertical surfaces and across liquids during your turn without falling during the movement.

You can make two attacks instead of one when taking the Attack action.

Your unarmed strikes count as magical for overcoming resistance and immunity to nonmagical attacks and damage.

Flurry of Blows, Patient Defense, and Step of the Wind no longer require ki. You can amplify Flurry of Blows with 1 ki to make its attacks with advantage, amplify Patient Defense with 1 ki to make attacks against creatures that miss you, and amplify Step of the Wind with 1 ki to double your movement speed and triple your jump distance.

You gain one additional attack when taking the Attack action and one additional strike when using Flurry of Blows.

Your body and mind become exceptionally difficult to control. You gain proficiency in all saving throws. When you fail a saving throw, you can spend 1 ki to reroll it and must use the new result.

You no longer suffer the frailty of old age, cannot be aged magically, and no longer need food or water. You can spend 4 ki to cast astral projection without material components, except you cannot take other creatures with you.

When you roll initiative and have no ki points remaining, you regain 4 ki points.

When you reach 0 hit points or would be killed instantly, make a Constitution saving throw with a DC of 10 plus the number of times you have been dropped to 0 hit points. On a success, you regain hit points equal to your monk level plus your Constitution modifier plus 12 hit points per ki spent. On a failure, you may still revive by expending all remaining ki. If you have no ki or choose not to revive, the effect that reduced you to 0 hit points takes effect.

Spectre knows the secret patterns and shortcuts of cities. He can move through urban environments at twice the speed of the general population and can find passages through a city that others would overlook.