Rider

A rider is an individual  who has bonded with a unicorn, giving them access to magic of the five elements, fire earth, air, water, and spirit, in addition, the rider’s appearence changes to match the element, this is called a mutation

Level 3: Element

Your bond is always to an allied element, it is to one of the five elements but never changed, and you gain an immunity/resistance to a damage type corresponding to the element

Air

You are allied to the air element, giving you immunity to lightning and thunder damage

Earth

You are allied to the earth element, as such you have resistance to slashing, peircing and bludgeoning damage, and you add your wisdom modifier to your armour class and hit points

Fire

You are allied to the fire element and have immunity to fire damage

Spirit

You are allied to the spirit element and have resistance to necrotic damage and immunity to radiant damage

Water

You are allied to the water element and as such have immunity to cold damage

Level 3: Bond

You summon forth you unicorn as an action

Level 6: Rider's intution

You gain proficiency in three skills of your choice

Level 10: Winners spirit

Once per long rest you can give your allies an extra action

Level 14: Elemental predator

You create a creature from raw magical energy, this creature keeps it's game statistics except for it's damage type and immunities, which change to match your unicorn's element blast and your unicorn's immunities