Spectre makes a melee attack against every creature within 5 feet, with a separate roll for each target.

Spectre uses supernatural focus to act through instinct and spectral echoes, gaining his Fluid Focus benefits.

Spectre can use an action to enter the Astral Plane, as though using astral projection, without material components. He can do so once per long rest, or again by spending 8 ki.

Spectre can use an action to become invisible for 1 minute, gain resistance to all damage except force, and make one additional attack when taking the Attack action. He can spend 4 ki to use this feature again before finishing a long rest.

Spectre makes two unarmed strikes as a bonus action after taking the Attack action with a monk weapon or unarmed strike.

Spectre takes the Dodge action as a bonus action, imposing disadvantage on attacks against him and granting advantage on Dexterity saving throws.

Spectre takes the Dash or Disengage action as a bonus action. He can amplify this with ki to double his movement and triple his jump distance.

Martial arts allow Spectre to use Dexterity for unarmed strikes and monk weapons, roll a d10 for unarmed strike damage, and make an unarmed strike as a bonus action after attacking with a monk weapon or unarmed strike.

Spectre can use a bonus action to make two unarmed strikes, take the Dodge action, or Dash and Disengage. He can spend 1 ki to gain additional benefits when amplifying these techniques.

Spectre reduces incoming ranged weapon damage and may catch or throw the missile.

Spectre gains proficiency in Strength and Dexterity saving throws. If already proficient, he may choose another saving throw proficiency.

While unarmored and not wielding a shield, Spectre's movement speed increases by 10 feet. This bonus improves to 20 feet at 6th level, 25 feet at 10th level, and 30 feet at 14th level.

Spectre's monk tradition grants the Spectral Attack features listed below.

Spectre can run across vertical surfaces and across liquids during his movement without falling during that movement.

Spectre gains proficiency in all saving throws. He can spend 1 ki to reroll a failed saving throw and must use the new result.

Spectre no longer suffers the frailty of old age and cannot be magically aged. He also no longer needs food or water.

Spectre gains four attacks whenever he takes the Attack action on his turn.

When reduced to 0 hit points or subjected to an instant-death effect, Spectre can make a Constitution saving throw with DC 10 plus the number of times he has been dropped. On a success, he regains hit points equal to his monk level plus Constitution modifier plus 12 hit points per ki spent. On a failure, he may revive by expending all remaining ki. If he has no ki or declines, the triggering effect resolves normally.

Flurry of Blows, Patient Defense, and Step of the Wind no longer require ki. Spectre may spend 1 ki to amplify Flurry of Blows with advantage, cause attacks against creatures that miss him during Patient Defense, or double his movement and triple his jump distance with Step of the Wind.

Spectre gains one additional attack when taking the Attack action and one additional strike when using Flurry of Blows.

While Fluid Focus is active, whenever Spectre is hit by an attack, he rolls a d20. If the result equals or exceeds the attacker's unmodified d20 roll, the attack misses regardless of its final total.

Spectre knows the secret patterns, shortcuts, alleys, shelters, and hidden routes of settlements. He can move through cities quickly and locate places where the poor and forgotten gather, making him difficult to confine or track in urban environments.