Sorcerous Origin
Based on the sorcerer of the Player's Handbook
Child of Khyber
Your innate magic comes from one of the most potent aberrant dragonmarks Khorvaire has seen for centuries. You might have been the forbidden progeny of two parents with greater true dragonmarks, excoriated from their houses to raise you in secret. Perhaps you have simply manifested the aberrant mark suddenly—during a time of great stress or danger—and have no idea why you were chosen for this power.
Aberrant marks are looked upon with distrust across Khorvaire, and most aberrant marked individuals hide theirs from view. Disconcertingly, however, yours seems to grow just a bit every day.
Khyber Manifestation
At 1st level, you manifest a least aberrant dragonmark (See the Aberrant Dragonmark feat in Eberron: Rising From The Last War in pag. 52). The Dragonmark works like a Arcane focus for you, if is severed from you, you lose this ability until it manifests again in your body in 1d6 + 1 days.
Additionally, when you reach 2nd level in this class, you can cast any sorcerer spell you know, up to level 5th, with your sorcery points. The cost in sorcery points is equal to the spell level.
Lifeforce Convertion
At 6th level, your aberrant dragonmark grows becoming in a lesser aberrant dragonmark giving you more power. You can channel your vital essence through your aberrant dragonmark, sacrificing your health for power. As a bonus action on your turn, can regain sorcery points sacrifaing hit dice on a one-for-one basis.
Boon Of Khyber
At 14th level, your power grows even more with you new greater aberrant dragonmark. You gain an epic boon from among the options in chapter 7 of the Dungeon Master's Guide.
Khyber Dragonmark
At 18th level, you become a true Child of Khyber, the Khyber dragonmark you carry is proof of that. This mark counts as a supreme arcane focus. From now on the spells you cast requiring no somatic, verbal, or material components (except those with a listed cost).
Additionally, you gain a free Wish, this wish will fulfill the sorcerer's ideas, but a second and destructive wish effect will happen in a random place in the existence if this wish is not a destructive one. If this wish is a destructive one, it will be twice as powerful.