After all the minds the Asteeryven has eaten, their intellect has grown to a genius level intellect.

Increase the characters Intelligence +2 (To a maximum of 20)

Millennia in the void, devouring thoughts and minds have caused this cunning predator to grow wise to the tricks to capture it.

Increase the characters Wisdom score +1 (Can not exceed 20)

Although incoporeal, through sheer force they have learned how to become physical beings.

As a bonus action, the Asteeryven can revert back to their incoporeal state, granting all the abilities of being incoporeal.

They can do this once per long rest, and must return to a place that is dark. Any source of light within 100 foot prevents them from returning back to corporeal form.

The Asteeryven can attempt to devour the mind of a target

Devour: Target takes 1D8 Psychic damage per round the Asteeryven is attached. Whilst attached the target takes damage each round, the target can repeat it's saving through at the start of each round. Upon regaining control for the first round only, the target can only use an Action, Bonus Action OR Reaction. On a successful save, the Target takes half damage and is free to act as normal

Learn: The Asteeryven temporarily learns a new skill or trait from the target of Devour. This lasts until their next long rest, they may only have 1 learned skill or trait at a time.

They are proficient in Primoridial and can read and write the language

The Asteeryven, due to their origin are resistant to being charmed and immune tosleep. They also have no requirement to sleep but must take rests to regain their abilities.

The Asteeryven can cast Eldritch Blast and Witchbolt using Wis as their spellcasting modifier

Due to their partially incoporeal nature, they are unable to wear anything heavier than Light Armour. They are proficient with Shields and Simple weapons.

The Asteeryven are especially adept at hunting down their prey and gain proficiency in Investigation and Survival Skills

Vulnerable to all forms of Radiant Damage