Cambion Conception

Conceived from an unholy union between a human and succubus or incubus, you were destined to have a wicked future and path. However when you were born, you didn’t show any signs of corruption besides your innate magical abilities.

Cambion Flame

Starting at level 1, once per turn whenever you cast a spell that deals damages to a creature as a reaction you can spend sorcery points up to the level of the spell. For each sorcerer point spent deal 1d6 fire damage to the creature.

Demonic Lineage

At 6th level your demonic lineage gives you 60 feet of darkvision. Additionally you resistance to two of the following damage types: fire, cold, lightning or poison.

Draining Magic

Starting at 14th level, once per turn whenever you cast a spell that deals damages to a creature as a bonus action you can spend 1 sorcery point to deal damage equal to half your sorcerer level + the level of the spell to that creature and reduce its hit point maximum by that amount. This reduction lasts until the creature takes a short rest. The target dies if this effect reduces its hit point maximum to 0.

Innate Charm

Starting at level 18, once per turn whenever you cast a spell that deals damages to a creature you can use your reaction to spend 3 sorcerer points, the creature must succeed on a Wisdom saving throw or be charmed by you until the end of your next turn. The charmed target obeys your verbal commands. While the target is charmed it had disadvantage on any saving throws against spells you cast. 

If the target suffers any harm, it can repeat the saving throw and if it receives a suicidal command, the effect ends.

You can have a number of creatures charmed equal to your Charisma modifier at the same time. If you charm another, the effect on the first creature ends.