Cosmic Bloodline

Cosmic Sorcerer's are those that had a life changing event or encounter with the Wild space and it's variety of inhabitants. Granting you the power of stars and the blood of an alien power in your veins. Typically those who have this power devolve into madness over their newfound abilities, though some do shine bright like stars and have proven to be heroes of wild space. Madness or not, their power over space is near unparalleled by their ground counterparts who dwell on planets below. 

Extraterrestrial Knowledge

The hum of Wild space whispers knowledge that you otherwise would've never known. At 1st level you gain proficiency in 3 skills of your choice.

 

You gain proficiency in an additional skill at 6th level, and again at 12th, in addition at 6th level you gain a advantage on intelligence checks and saving throws 

Cosmic Magic

At 6th level, your cosmic blood heightens. Whenever you cast a spell of first level or higher that deals damage you can add force damage equal to half your sorcerer class roundup, if the spell does not deal damage you instead can give yourself advantage on your next spell attack as your cosmic energy builds up inside you.

Alien Forms

The power of Extraterrestrials run through your veins, at 14th level you can expend a spell slot of 4th level or higher to change into a Aberration or Monstrosity type monster with a CR equal to or lower than your class level. You replace your strength and dexterity stats with that of the monster, but you retain your intelligence, Wisdom, and Charisma stats. You can maintain this form for an hour, at the end of the hour you revert to your normal form and you gain one point of exhaustion. You can revert to your true form as a bonus action. 

You can use this ability once per short/long rest, at 17th level you can use it twice per short/long rest

Supernoval Form

The power of the stars channel through you, at 18th level you can use a 6th level spell slot to enter your supernoval Form for one hour, you can dismiss this form as a free action. While in this form you gain the following benefits:

-Flight Speed equal to twice your base walking speed

-Resistance to Acid, Cold, Fire, Force, Lightning, and Thunder damage

-Temporary hit points equal to twice your hit point maximum

 

You can use this only once per long rest.