Rider

A rider is an individual who has bonded with a unicorn, giving them access to magic of the five elements, fire, earth, water, air and spirit, the bond alters a rider’s appearence as according to the element, hair may be ablaze for a fire mutation, a choker of icicles for water, or the skin on your arm to turn see through for spirit 

Level 3: Element

Your bond is always an allied element, it can be any of the five but never changed, and you gain immunity to a damage type corresponding to the element

Air

You are bonded the air element

Earth

you are allied to earth

Fire

You are allied to the fire element

spirit

you are allied to the spirit element

Water

You are allied to the water element

Bond

You can summon your unicorn as an action, using the unicorn stat block without any legendary actions, spells, languages,teleport, or healing touch, and their speed is 40 ft, while their flying speed is 50 ft, and they share your immunities from the element feature

Level 7: Rider’s intuition

Your skills have led you to gain proficency in three skills

Level 11: Winners spirit

You have grown to have the spirit of a leader, once per long rest, you can grant up to three allies of your choice with an extra turn

Elemental predator

 You tap into the bond to create an elemental predator, a creature that can help you in combat