Broken Heart Sorcery

Your innate magic comes from your succubus bloodline that can be traced back in your ancestry. You are the result of a succubus and a mortal indulging in forbidden pleasures. After many generations of dilution your fiendish traits are no longer obvious, to everyone you are just exceptionally beautiful and have an otherworldly attraction.

Fiendish Offspring

Through your tainted ancestry, you can speak, read, and write Abyssal and Infernal. Knowing these languages allows you to understand and be understood by fiends.

Dream Come True

Starting at 1st level,  you are able to become the living fantasy of any love-struck fool. You have telepathy within a range of 30 feet, you also know the minor illusion cantrip. When you reach 3rd level, you can cast the alter self spell as a 2nd-level spell once with this feature, and you regain the ability to cast it this way when you finish a long rest. Charisma is your spellcasting ability for these spells.

Irresistible Charm

At 6th level, you use your innate charm to seduce the innocent into partaking in forbidden pleasures. You can use an action to target one humanoid you can see within 30 feet must succeed on a Wisdom saving throw equal to your sorceror spell save DC or be magically charmed for 1 day. The charmed target obeys your commands. If the target suffers any harm or receives a suicidal command, it can repeat the saving throw, ending the effect on a success. If the target successfully saves against the effect, or if the effect on it ends, the target is immune to this feature for the next 24 hours.

You can use this a number of times equal to your Charisma modifier(minimum of one). You regain all expended uses of it when you finish a long rest.

Crime of Passion

At 14th level, your kiss embodies the emptiness that is the longing for a kindred soul.  You can use an action to kiss one charmed or willing creature. The target must make a Constitution saving throw against your sorceror spell save DC, on a failed save take 5d10 psychic damage, or half as much damage on a successful one. The target's hit point maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0.

Once you use this feature, you can’t use it again until you finish a long rest.

Heart of Stone

At 18th level, you have become resistant to the world and its heartless ways. You add your Charisma modifier (minimum of +1) to your armour class.