Phantom

Echoes of those who have died cling to you. Whenever you finish a short or long rest, you can gain one skill or tool proficiency of your choice, as a ghostly presence shares its knowledge with you. You lose this proficiency when you use this feature to choose a different proficiency that you lack.

As you nudge someone closer to the grave, you can channel the power of death to harm someone else as well. Immediately after you deal your Sneak Attack damage to a creature on your turn, you can target a second creature that you can see within 30 ft of the first creature. Roll half the number of Sneak Attack dice for your Rogue level (Rounded up), and the second creature takes Necrotic damage equal to the roll's total, as wails of the dead sound around them for a moment.

You can use this feature a number of times equal to your Proficiency Bonus, and you regain all expended uses when you finish a long rest.

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 ft, 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.

The dead you have accumulated cry out as their number increases. You can choose a third target when you use this feature, applying the same Necrotic damage to the third target within 30 ft of the first or second creature.

Your dealings with death have blurred your soul with the Undead. You can use an action to Polymorph into a Wraith for up to one hour or until your Wraith’s hit points hit zero or you choose to end it using a bonus action. Any Specters created by your Warith form vanish after you transform back.

You can use this feature once per long rest.