Elemental Warrior

Take advantage of the deadly magical potential coursing through your body and apply it the much deadlier combat skills you have honed over the years. Shoot the elements from the tips of your fingers and conjure weapons made of sheer Magic. The Elements are yours to control. 

Elemental Affinity

Magic Property - At 3rd level, whenever you finish a long rest, you may pick an Elemental form of damage. You can then add 1 Cantrip from the Sorcerer spell list that deals your chosen type of damage.  Every time you take a long rest, the chosen element and cantrip are replaced by what you subsequently change. The ability used by spells of this archetype is Charisma

Elemental Surge - As a bonus action during combat, you may add 1d6 of the chosen element type to an attack that you hit, you can use this feature a number of times equal to your proficiency bonus per long rest. You also regain one use of this feature when your "Action Surge." The damage for this feature increases to 2d6 at level 6, 3d6 at level 10, and 4d6 at level 15 

Acid

Add Acid Splash to your Spell List

Fire

Add Fire Bolt to your spell list.

Frost

Add Ray of Frost to your spell list.

Lightning

Add Shocking Grasp to your spell list

Elemental Weapon

At the end of a Long Rest, you may conjure 1 weapon that you are proficient with, the damage type for that weapon is changed to whatever Element you align yourself with. Additionally you may add half of your Charisma Modifier to the Damage of this weapon when used for an attack.

Elemental Armor

Retaliation - When you take damage from a hostile entity you can see within 30 ft. of you, you may use your reaction to deal 1d12 damage with your chosen elemental Damage Type. You may use this feature a number of times equal to half your proficiency bonus rounded up and regain one use when you use the "Second Wind" feature

Repel Elements - You gain resistance to the damage type of your chosen Element 

Training progress

Your Elemental weapon has changed for and is now much stronger. You have also gained immunity to your Element.

Master of the Elements

Affinity Shifter - Your mastery over the magic residing in your body has allowed you to change its affinity on the fly. Once per long rest, during your turn as a free action, you can change your elemental affinity