As a Bonus action, you can see 60 feet into the Ethereal Plane for up to 1 minute.

You know the Chill Touch cantrip. In addition, whenever you hit a creature within 5 feet of you with this spell, you can attempt to grapple them as a Bonus Action. Intelligence, Wisdom, or Charisma is your spellcasting ability for this trait, and you can use this ability instead of Strength for the grapple saving throw DC.

You can hover up to 1 foot in the air. If you are ever above this threshold, you will fall to the ground as normal unless you have a flying speed. In addition, you have Advantage on saving throws you make to avoid the Prone condition. If you have a flying speed, it is a hover for you.

When you reach character level 5, you can transform, turning ghostly and translucent as a Bonus Action. This transformation lasts for 1 minute or until you end it (no action required). Once you transform, you can’t do so again until you finish a Long Rest. While in this form you gain the following properties:

 Incorporeal Movement. You can move through other creatures and objects as if they were Difficult Terrain to reach an unoccupied space that you can see. If you end your turn inside of an object, you take 5 (1d10) force damage and are moved to the nearest unoccupied space.

 Sapping Touch. At the start of each of your turns, you can deal 1d4 Necrotic damage to one creature Grappled by you. You regain a number of hit points equal to the damage dealt.

 Transparency. You have resistance to Fire and Cold damage, and have Advantage on Dexterity (Stealth) checks