race features:
Creature of Solid Shadow. Between the hours of 9pm and 6:59am, this creatures gains a +2 to their constitution, and from 7am to 9pm this creature has a modifier of -1 to constitution. This creature can move 35ft in areas affected by the shadowfell, but can only move 25ft in areas affected by Hope's Light.
Shed Ones Mask. This ability can only be used while under the effect of False Appearance. Once per day, you can shed your illusory form to impose disadvantage on attacks made against this creature. All creatures within 30ft will be able to identify you as a Cherchire, and will not suffer the effects of Shed Ones Skin, until the next day.
Shed Ones Skin. This ability can only be used while under the effect of False Appearance. Once per day, you can choose to discard the disguise you picked with False Appearance. When you choose to do so, all creatures who do not know of your true form must succeed a DC 11 + half of player level (rounded up) wisdom saving throw. On a success, the creature suffers no ill effect. On a failure, roll a d10 on the short term madness table, and those creatures suffer from that effect for 1d4 hours, and you gain advantage on intimidation and persuasion rolls against those creatures for the next 7 - (wisdom modifier) days. This creature loses their False Appearance, until False Appearance is used the next day.
False Appearance. Once per day, between the hours of 6 and 7am, you can choose to take on a false appearance (you do not have to be conscious to make this choice). While disguised, you are indistinguishable from the race or individual you chose to impersonate, but you do not gain their gear, abilities or racial bonuses.
In-distinguishable from an ordinary human by day and indistinguishable from each other at night, Cherchire are animals corrupted by the shadowfell, beings of disorder yet calculated and precise. While hard to distinguish from onlookers, Cherchire are different in appearance in subtly different ways when fully transformed, allowing Cherchire to distinguish each other.