Fiendish Bloodline

Unholy relations sometime bear fruit of the sinister kind, you manifest powers from ancient pacts, damned bloodlines, or mysterious benefactors. You summon your magic from the lower planes of existence, where beings desire the corruption or destruction of all things, ultimately including you. This does not mean you have ever actually seen a demon or devil, however; many find themselves manifesting their powers from their blood.

Fiendish Magic

Your blood ties to the fiends allows you to learn spells associated with the warlock class. When your spellcasting feature lets you learn a sorcerer cantrip or a sorcerer spell of 1 level or higher, you can choose the new spell from the warlock spell list or the sorcerer spell list. You must otherwise obey all the restrictions of selecting the spell, and it becomes a sorcerer spell for you.

In addition, choose a bloodline for the source of your power. You learn additional spells based on that line, as shown below. They do not count against your number of sorcerer spells known. If you later replace this spell, you must replace it with a spell from the warlock spell list.

Affinity	Spell
Demons	Level 1 you learn Restricted Polymorph* spell. At level 3 you learn Misty Step. *Using a 1 level spell slot you can polymorph into a bat, centipede or a toad. The restriction lifts at level 7.
Devils	Level 1 you learn Restricted Polymorph* spell. At level 3 you learn Invisibility. *Using a 1 level spell slot, you can polymorph into a rat, raven or a spider. The restriction lifts at level 7.
Yugoloths	Level 1 you learn Detect magic. At level 5 you learn Dispel Magic.

Demon

You learn the Restricted Polymorph* spell at level 1. At level 3 you learn Misty Step. *Using a 1 level spell slot, you can polymorph into a bat, centipede or a toad. The restriction lifts at level 7. They don’t count against your number of sorcerer spells known. If you later replace this spell, you must replace it with a spell from the warlock spell list.

Devil

You learn the Restricted Polymorph* spell at level 1. At level 3 you learn Invisibility. *Using a 1 level spell slot you can polymorph into a rat, raven or a spider. The restriction lifts at level 7. They don’t count against your number of sorcerer spells known. If you later replace this spell, you must replace it with a spell from the warlock spell list.

Yugoloth

You learn the Detect magic spell at level 1. At level 5 you learn Dispel Magic. They don’t count against your number of sorcerer spells known. If you later replace this spell, you must replace it with a spell from the warlock spell list.

Fiendish Heritage

Starting at 1 level, you can speak, read and write infernal and abyssal. Whenever you make a charisma check when interacting with a fiend of your chosen bloodline your proficiency is doubled for that check.

Additionally at 1 level, you can choose 1 of these 3 damage types to become resistant to; fire, poison, cold.

At 14 level you can choose an additional resistance or choose the same damage type to have the ability to become immune to that damage.

Cold Resistance

You become resistant to Cold damage.

Fire Resistance

You gain resistance to fire damage.

Poison Resistance

You become resistant to poison damage.

Diabolical Discourse

At 6 level your fiendish blood boils unlocking deeper instincts within you, your darkvision distance is doubled. You also learn how to communicate telepathically to others. You must be able to speak their language for you to communicate with them, they cannot respond via telepathy.

Wings of the Wicked

Upon reaching 14 level, you gain the ability to sprout a pair of fiendish wings from your back, gaining a fly speed equal to your walking speed. You can create these wings as a bonus action and they last until you dismiss them as a bonus action. They cannot be manifested while you wear armour unless it is made to accommodate them.

Fiendish Heritage

At 14 level you can choose an additional resistance damage type or choose the same damage type to become immune to that damage for a duration of time.

Cold Immunity

Upon activating this feature you become immune to cold damage for 1 minute. This feature cannot be used again until you have completed a long rest.

Cold Resistance

You become resistant to cold damage.

Fire Immunity

Upon activating this feature you become immune to fire damage for 1 minute. This feature cannot be used again until you have completed a long rest.

Fire Resistance

You become resistant to fire damage.

Poison Immunity

Upon activating this feature you become immune to poison damage and the poisoned condition for 1 minute. This feature cannot be used again until you have completed a long rest.

Poison Resistance

You become resistant to poison damage.

Malevolent Mastery

At 18th level, you gain magic resistance reaching the peak of your abilities. You have advantage on saving throws against spells, additionally when you cast a spell dealing one of these damage types, fire, poison, cold, you can spend 5 sorcerer points to ignore resistances or 10 points to ignore immunity.

Magic Resistance

You gain advantage on saving throws against spells and other magical effects.