Phantom/Swashbuckler

Includes some features from both classes.

Fancy Footwork

When you choose this archetype at 3rd level, you learn how to land a strike and then slip away without reprisal. During your turn, if you make a melee attack against a creature, that creature can’t make opportunity attacks against you for the rest of your turn.

Rakish Audacity

Starting at 3rd level, your confidence propels you into battle. You can give yourself a bonus to your initiative rolls equal to your Charisma modifier.

You also gain an additional way to use your Sneak Attack; you don’t need advantage on the attack roll to use your Sneak Attack against a creature if you are within 5 feet of it, no other creatures are within 5 feet of you, and you don’t have disadvantage on the attack roll. All the other rules for Sneak Attack still apply to you.

Death Sense

You can sense when spirits are within 20 feet of you, but you arent able to pinpoint their location or how many there are without a DC 10 arcana check (DC can be altered by DM)

Tokens of the Departed

9th-level Phantom feature

When a life ends in your presence, you’re able to snatch a token from the departing soul, a sliver of its life essence that takes physical form: as a reaction when a creature you can see dies within 30 feet of you, you can open your free hand and cause a Tiny trinket to appear there, a soul trinket. The DM determines the trinket’s form or has you roll on the Trinkets table in the Player’s Handbook to generate it.

You can have a maximum number of soul trinkets equal to your proficiency bonus, and you can’t create one while at your maximum. You can use soul trinkets in the following ways:

• While a soul trinket is on your person, you have advantage on death saving throws and Constitution saving throws, for your vitality is enhanced by the life essence within the object.
• When you deal Sneak Attack damage on your turn, you can destroy one of your soul trinkets that’s on your person and then immediately use Wails from the Grave, without expending a use of that feature.
• As an action, you can destroy one of your soul trinkets, no matter where it’s located. When you do so, you can ask the spirit associated with the trinket one question. The spirit appears to you and answers in a language it knew in life. It’s under no obligation to be truthful, and it answers as concisely as possible, eager to be free. The spirit knows only what it knew in life, as determined by the DM.

Ghost Walk

13th-level Phantom feature

You can phase partially into the realm of the dead, becoming like a ghost. As a bonus action, you assume a spectral form. While in this form, you have a flying speed of 10 feet, you can hover, and attack rolls have disadvantage against you. You can also move through creatures and objects as if they were difficult terrain, but you take 1d10 force damage if you end your turn inside a creature or an object.

You stay in this form for 10 minutes or until you end it as a bonus action. To use this feature again, you must finish a long rest or destroy one of your soul trinkets as part of the bonus action you use to activate Ghost 

Master Duelist

Beginning at 17th level, your mastery of the blade lets you turn failure into success in combat. If you miss with an attack roll, you can roll it again with advantage. Once you do so, you can’t use this feature again until you finish a short or long rest.