Infested bloodline

Your magic is disturbing to some, and disgusting to many. As your power comes from an insectoid. Many of them are monstrosities and many aren’t sure where the actual magic comes from. Some say it isn’t even magic, just a form of poison in your blood. You could have been formed if your mother was poisoned while she was pregnant with you, or just having a bloodline infested by the blood of insects.

Spreading infection

When you take this bloodline at 1st level, you learn the poison spray cantrip. You may cast it as a bonus action. If you do so the damage die is a d8 instead of a d12

Insectoid body

Your heritage has changed your body slightly, also at 1st level you gain a climbing speed equal to your walking speed and can climb vertically and upside down easily. You also have an innate sense for things around you. You gain blindsight up to 5 feet.

Poison mastery

Starting at 6th level,  when you cast a spell that poisons a creature or deals poison damage, it deals extra damage equal to your constitution modifier. Additionally, you ignore resistance you poison damage and treat immunity as resistance. Creatures that are immune to the poisoned condition are not immune to poisons afflicted by you. You also gain resistance to poison damage.

Poisoned blood

Starting at 14th level, your blood is almost like poison. You gain immunity to both poison and the poisoned condition. Whenever you take damage from a creature 5 feet away or closer to you, they must make a dexterity saving throw. On a success they take poison damage equal to your constitution modifier. On a failure they take poison damage equal to your sorcerer level and are forced to move 5 feet away from you.

Insect wings

At 18th level you gain a pair of insectoid wings. You gain a fly speed of 15ft, if you already have a fly sped this is added to your fly speed instead. If your wings are wet they cease to function until they dry. Reducing or removing your fly speed. If they get wet while you are in the air you float harmlessly to the ground at a rate of 60 feet per round.