Ghost

as a Ghost, you're a quick and nimble brute, despite the contradiction. you skulk about the shadows and silently drag people where they don't want to go. you've broken more necks than you have pierced hearts or poisoned wine, and you're fully content with that. and sometimes its just more satisfying to deal with someone with your own hands. it's just a little more personal.

Hush

Starting when you take this archetype at Level 3 you gain the following features-

Proficiency in Unarmed Strikes and Athletics skill checks or expertise if you are already proficient.

Your unarmed strikes now deal 1d6 and gain the finesse property damage.

You can choose to grapple as a bonus action, this does not break stealth on a success. If doing so from stealth, the check is at advantage against the targets ac and is not contested. once grappled. For the first turn the target is grappled you may move at full speed dragging the target with you the target is considered silenced during this grapple and must succeed in breaking free to remove this effect. (do note- that while the grapple itself does not break stealth, if an entity were to be viewing the target when this occurs, stealth has been broken)

Additionally, while the target is grappled attacks made by you are made with advantage.

Flick of The Wrist: while you are grappling a target and succeed on an attack against them, you may choose to expend one use of this ability to enhance the damage to a critical hit. you may do this a number of times per long rest equal to your proficiency bonus

"you've got a knack for snatching your quarry from the shadows and dragging them quietly into the dark. better yet, with just a twitch of your wrist you can choose to end them. up to you..."

Like Air

you gain the following features at level 9-

you can now dash without breaking stealth and may now choose to dash while grappling a target. other grapple features still apply.

Additionally, you may once per turn use your bonus action to feint an attack to give you advantage on a followup attack in the same turn.

"Its hard to see a shadow in the light. Even harder to pin one down."

Spectre

starting at 13th level, you gain the following features.

You can choose to use your bonus action to use the effects of both the disengage and the dodge action simultaneously

"Almost seems like you got a knack for moving through stone if i didn't know any better. Just watch your laces kid."

Poltergeist

upon reaching 17th level, you gain the following feature

you may choose to call a shot against a target. make this attack unarmed against the target at disadvantage. on a successful hit you deal damage as if it were a critical and then double the damage dealt.

"Well then, good job kid. one last test for ya. see that rat over there? i don't want to anymore."