Plague Touched

Death came knocking at your door in the form of a plague, but instead of dying, your body adapted. You have become one with with the plague and those who spread it. 

d6	Quirk
1	You skin is flakey and sometimes sheds.
2	Your eyes are pale and glazed over.
3	You constantly smell of death.
4	Your breath can be seen as a green mist.
5	You have trouble talking to anyone who isn't a rat.
6	Your pale skin is covered in boils, bumps, and bruises.

Necrotic Touch

Level 1 Plague Touched Feature

Those who touch your skin feel your sickness. A creature you make skin to skin contact with must succeed on a DC 12 Constitution saving throw or take 1d6 necrotic damage.

Rat Tammer

Level 1 Plague Touched Feature

You have made allies with those with those that spread your plague. Learning their ways. Taking them under your command. You can summon 1 swarm of rats as an action. You can summon additional swarm of rats costing one sorcery point per additional swarm. You can control all swarms summoned using your bonus action.

Plague Transfer

Level 6 Plague Touched Feature

You have learned how to spread your plague more quickly. Affecting more than just those you cast your magic on. When casting a necrotic spell of 1st level or higher, if the spell is successful, each creature of your choice within 15 feet of the targeted creature takes necrotic damage equal to half your sorcerer level. Additionally, your attunement  to sickness has made you immune to poison and resistant to necrotic damage.

One with the plague

Level 14 Plague Touched Feature

You have become one with those that spread the plague, and count yourself among them. As an action, you can polymorph yourself into a swarm of rats. If you drop to zero hit points while in this form and have additional swarm of rats summoned, you can transfer your consciousness to that swarm, becoming them. If you drop to zero hp and don't have additional swarms summoned, then the spell ends as normal. You cannot cast spells while in this form, but can continue to use your bonus action to control any additional swarms.

Leaking Sickness

Level 14 Plague Touched Feature

When you are struck, a mist of sickness leaks from you. When hit by a melee attack, the attacker must make a Constitution save vs your spell save DC, on a failed save the creature becomes poisoned and takes necrotic damage equal to half your sorcerer level.

Improved Rats

Level 18 Plague Touched Feature

Your connection to the plague rats has grown stronger, and they have grown stronger because of it. Double the hit points and bite damage when you summon or polymorph into a swarm of rats. Additionally, all rats summoned leak the plague, and when hit by a melee attack, the attacker must make a Constitution save vs your spell save DC, on a failed save the creature becomes poisoned and takes necrotic damage equal to half your sorcerer level.