Crystal Soul

 Magical crystals grow from your body, you can draw magic from them or channel magic into them to alter your abilities.

 

Level 1: Crystal Skin

Crystals grow over portions of your body, protecting you from harm. Your AC = 13+your Dexterity modifier.

As a Bonus Action, you expend 1 spellslot of 1st level or higher to gain the following benefits for 10 minutes:

Grow Crystals. You gain temporary hit points equal to 5 times the level of the spell slot expended.

Crystal Weapon. Your crystals grow into the form of a one-handed melee weapon of your choice, you have proficiency with this weapon and use your Charisma for attack and damage rolls instead of your Strength or Dexterity. It deals force damage on a hit rather than it's normal damage type.

Level 1: Prism Vision

One of your eyes becomes filled with crystals that refract and distort your vision. You can always see magic as if you had cast detect magic.

Level 6: Crystal Spikes

When you activate your Crystal Growth ability, the weapon you create can be a ranged weapon of your choice that fires magically conjured shards of crystal. In addition, when you use an action to cast a spell you can make one attack with your Crystalline weapon as a bonus action.

Level 14: Absorb Crystals

As an action, you can absorb one crystal you are holding. The crystal merges into your body, and you regain a number of sorcerer points equal to the gold value of the crystal divided by 20 (minimum 1, maximum = your proficiency bonus). Once you use this ability you cannot use it again until you finish a long rest. The crystal cannot be removed after being absorbed in this way.

 

Level 14: Earth Glide

Your crystalline nature allows you to merge yourself with natural stone and earth. As a bonus action, you transform into a crystal form allowing you to burrow through nonmagical, unworked earth and stone at a speed equal to your walking speed. While doing so, the you don't disturb the material you move through. You also gain Tremorsense with a 30 ft range.

This ability lasts for 10 minutes if you are still within earth or stone when this effect ends you are jettisoned out of the material to the nearest unoccupied space. You can use this ability a number of times equal to your proficiency bonus, regaining all uses when you finish a long rest.

 

Level 18: Reflective Shell

Your crystal armour grows into a thick protective shell, your AC increases to 15+your Dexterity modifier and you have advantage on saving throws against spells. 

Reflect Magic. In addition, when you succeed on a saving throw against a spell that targets only you, you can use your reaction to spend a number of sorcery points equal to that spell’s level and reflect it back towards the caster, causing the spell to instead target the caster.