ReMonk Way of Shadow

Monks of the Way of Shadow follow a tradition that values stealth and subterfuge. These monks might be called ninjas or shadowdancers, and they serve as spies and assassins. Sometimes the members of a ninja monastery are family members, forming a clan sworn to secrecy about their arts and missions. Other monasteries are more like thieves’ guilds, hiring out their services to nobles, rich merchants, or anyone else who can pay their fees. Regardless of their methods, the heads of these monasteries expect the unquestioning obedience of their students.

Spellcasting

When you reach 3rd level, you augment your martial prowess with the ability to cast spells. You do not have spell slots but can cast spells a certain number of times a day. that number will be included when you obtain new spells in this subclass.

Razor Shadow

At 3rd level you lash out with your own manipulated shadow. Make a melee spell attack that deals 1d4 + spell damage modifier magical piercing damage. This attack has advantage if you are in dim light or darkness. when taking the attack action you can replace one weapon attack with a Razor Shadow Attack

Shade Form

At 3rd level, as a free action you can enter a state that merges your mind and body with ethereal darkness known as Shade form. Shade form lasts for one minute and you can use this form a number of times equal to your proficiency bonus per long rest, it ends early if you are incapacitated but otherwise cannot be ended early. The following changes and benefits are applied to you when in Shade Form

• While in this form whenever you start your turn in bright light you take 5 radiant damage. this damage increases at different levels in this class. 10 radiant damage at 7th level, 15 radiant damage at 10th level, 20 radiant damage at 15th level and 25 radiant damage at 18th level. 
• Once per round as a free action you can target any source of non-magical light that you can see and that fits within a 5ft cube and extinguish it 
• you gain Tremorsense 60ft but only for creatures and objects in either dim light or darkness
• Once per round as a free action you can teleport up to 30 feet to an unoccupied space you can see that is in dim light or darkness. 
• You can attack with Razor Shadow as a bonus action

Shar's call

At 7th level you learn the Fear spell. You can cast this spell three times per long rest, additionally when in Shade form you can cast this spell once per use of the Form without it taking up any charges. When cast in this way the fear spell forces the creatures who fail their saving throw to fear bright light instead of you. 

Umbral Shift

At 10th level, as an action you can teleport yourself or one of your allies that you can see up to 30 feet away from you to an unoccupied space you can see that is in dim light or darkness up to 30ft away from you. When in Shade Form you can use this feature as a bonus action

Empowered Penumbra

At 15th level you can use the following features of Shade Form without activating Shade Form.

• Once per round as a free action you can target any source of non-magical light that you can see and that fits within a 5ft cube and extinguish it 
• You gain Tremorsense 60ft but only for creatures and objects in either dim light or darkness

Additionally when you are in Shade Form the same features become upgraded

• Once per round as a free action you can target any source of light within 120 ft that you can see and extinguish it, if the source is non-magical or if the spell that created the light is lower than 3rd level then the light is extinguished along with the spell that created it, if the light is produced by a magical effect of 4th level or higher make an ability check using your spellcasting ability. The DC equals 10 + the spell's level. On a successful check, the spell ends. 
• You and up to 5 creatures of your choice gain Tremorsense 60ft but only for creatures and objects in either dim light or darkness.

Dark Fall

At 18th level you've attained mastery of your Monastic Path and have earned the right to establish and lead your own chapter of the Way of Shadow. To do so you'll need a suitable location to hone and train the fledgling powers of your potential students, or suitable power to make one.

You learn a special version of the spell Mirage Arcane that you can cast once per long rest. The spell functions as normal except instead of changing the look, sound, smell or feel of the terrain you can only change the light levels to either dim light or darkness within the effected area, additionally all non-magical sources of light are snuffed out and cannot be re-lit for the duration of the spell. While in Shade form you can cast this spell 1 additional time by expending 1 use of shade form as an action. When cast in this way you can also choose to change the light levels of the area to magical darkness and all magical sources of light from 5th level and lower are snuffed out and cannot be cast until the spell ends. The spell ends when you leave shade form.