Blade Soul Sorcerer

A criminal is pursued by two adventures, thinking he has escaped he stops to catch his breath only for one to morph into a scythe and be swung by the other, splitting him clean in half. A cheerful halfling whistles a tune while he leads the way through a forest, his arm morphed into a axe to cut through foliage in his way. A battered half orc warrior finally falls to a horde of Gnolls, dropping his rune encrusted broadsword, when one picks it up he hears a voice whispering in his mind and he instantly turns on his kin, hacking them all to pieces.

Some unique individuals, weather it be from a curse, arcane experimentation, or some unusual family bloodline, they have gained the ability to morph their bodies from those of flesh to cold tempered steel. 

 

Born of The Blade

At 1st level you can pick one simple and one martial weapons to partly transform into and you gain proficiency with light and medium armor. 

You can use a bonus action to turn one of your limbs into part of one chosen weapon, you are considered proficient with and cannot be disarmed of these weapons and your weapon limbs can be used as a focus for your spellcasting. These weapons also have slight magical properties being considered magic for overcoming DR.

You can study a weapon over the course of a short rest to be able to transform into a perfect copy it. Your total number of weapon forms cannot exceed a number equal to your charisma modifier + half your proficiency bonus and you cannot copy another sentient weapon or an artifact level weapon in this way and you cannot copy magic properties on weapons just the weapon itself.

Full Weapon Form

You can use your action to fully morph into one of your chosen weapons. While in this form you have the following statistics 

Speed. You naturally hover up to 5 feet off the ground normally, you are considered to have a walking speed  equal to half your movement speed. You also ignore difficult terrain

Blindsight. You have blindsight out to a range of 80ft, but beyond that are blind.

You're a Weapon. When you take the attack action you can make attack with the weapon of the form you are currently in, i.e. a long sword attack if you are currently in the form of a longsword. Also, while in the hands of a creature, you can decide to give advantage or disadvantage to their roll, but doing so uses your reaction. You also gain resistance to damage from non magical sources.

Blade Soul Spells

 Starting at 1st level, your weaponised nature changes you in subtle but profound ways. You learn additional spells when you reach certain levels in this class, as shown on the Blade Soul Spells table. The spell counts as a sorcerer spell for you, but it doesn’t count against the number of sorcerer spells you know. These spells can’t be replaced when you gain a level in this class.

Spell Level	Spells
1st	Thunderous Smite, Inflict Wounds
2nd	Branding Smite, Cloud of Daggers
3rd	Blink, Blinding Smite
4th	Staggering Smite, Greater Invisibility
5th	Steel Wind Strike, Banishing Smite

Empowered Wielder

At 6th level, You can extend some power to whoever wields your weapon form, providing them the following benefits

Whenever you cast a spell on yourself you can also cast it on your wielder

You can add you charisma modifier to attack and damage rolls made with your full or partial weapon form

Whenever you or your welder is attacked you can use your reaction to parry the attack, letting you add your charisma modifier to both your AC for that attack

Extra Attack

Starting at 6th level, When you take the attack action on your turn you can make an extra attack action. (Kinda self explanatory)

Accursed Bearer

At 14th level, whenever a creature picks up your weapon form you can force the creature to make a wisdom saving throw against your spell DC to take over their body for as long as they are in contact with you. 

You can use this creatures physical stats but your mental stats and you can use any of your sorcerer abilities as well as physical abilities your bearer has access to.

Artifact of Legend

At 18th Level, you can add one kind of enchantment to all of your weapon forms over the course of a long rest. These enchantments can be anything but they must have been on a weapon you've previously studied to be used and you can only have one enchantment active at a time and you can swap them out upon a short rest.