Aethera

Aetheras are energy beings made of aether, a diluted form of Essence. Native to the space between the realms, aetheras are able to travel from one realm to the next. While they often walk mortal realms, some aetheras have found paths to celestial and infernal realms, allowing them to establish vast networks for trade and smuggling.

Traits

Ability Score Increase. Your Intelligence or Charisma score (your choice) increases by 1.

Age. All aetheras are adults, and they don’t age.

Alignment. Aetheras lack a cultural context that might enable them to have a common outlook other than neutral.

Rarity. Uncommon.

Size. Aetheras are humanlike in size but nearly weightless, growing more weightless as they gain power. Your size is Medium.

Speed. Your base walking speed is 30 feet.

Absorb Magic. When you succeed on a saving throw against a spell or magical effect, you regain ld4 hit points.

Aetheric Movement. Double the distance you can jump. Your energy body also allows you to reduce the cost of moving through difficult terrain by 2 feet per foot you move. When you crawl, you can do so at full speed. In addition, you can enter spaces small enough to admit Tiny creatures without squeezing.

Energy Body. You know the eldritch blast cantrip. Once you reach 3rd level, you can cast feather fall, targeting yourself. You regain the use of this spell each time you finish a short or long rest. At 5th level, you can cast levitate, targeting yourself, once per day. When you reach 7th level, you regain the use of levitate each time you finish a short or long rest. Wisdom or Charisma is your spellcasting ability for these spells, and you need no material components for them.

Living Aether. You are a humanoid, but your aetheric nature gives you the following traits. You are immune to disease, and you have resistance to poison damage and damage you take from falling. Also, you can add your proficiency bonus to saving throws against being poisoned. If you have proficiency in such a saving throw, your proficiency bonus is doubled against being poisoned. You need not eat or drink. You are vulnerable to force damage and psychic damage, which severely disrupts your aetheric body.

Energy Form. Using your action, you can alter the vibration of your energy body, becoming incorporeal for a time along with everything you’re wearing and carrying. This form lasts while you focus on it, as if you are concentrating on a spell. In it, you have a flying speed of 30 feet, you can hover, and you can enter and occupy the space of another creature. Also, you can move through any opening air could move through. Other creatures can enter and occupy your space. In this form, you can’t manipulate objects, attack, or cast spells, and objects that transformed with you can’t be interacted with. You can use this ability again only after you finish a long rest.

Languages. You speak, read, and write Common.