Pact of the Rider

Rather than making a Pact with an other worldly patron you have bonded with a favored mount. These creatures seek to be free and unfettered in their movement, the bearers of these pacts seek to travel the world without restriction and will openly oppose those who would take that from them. Along with that those who serve these pacts seek to bring back to natural world and let all roam free. You and your mount stand against tyranny and injustice throughout the realms. 

Riders Bond

When you take this pact at 1st level, you bind yourself to a creature that you can use as a mount. You may choose any creature that your character can ride; however the creature must be one size larger than you, and gain  proficiencies Animal Handling as well as any other proficiencies in order to effectively use your mount. While you are within 10 feet of your mount you gain the following benefits:

- You add your proficiency to your damage attacks 

-  As reaction, when you or your mount is hit with an attack, you may split the damage halfway between the your mount and yourself. If the damage is not equally halved, you take the greater number.

-  You are also able to mount and dismount using only 5 feet of movement 

Pact Mount

Starting at 1st level, you may summon and make a pact with a ridable creature that is a size larger than you to be your pact mount. Whenever you take a Long Rest, you may switch the form of your Pact Mount. Your Pact Mount has the following Stats:

Pact Mount

Hit Points: Charisma Modifier + Proficiency bonus + 5x Warlock level

Armor Class: Charisma Modifier + proficiency bonus + 10

Speed: 50 feet

all other stats are the same as the creature whose form the Pact Mount has taken. 

The Pact Mount takes its turn on your initiative count right after you but will only be able to move and dodge unless you command your pact mount on your turn using your bonus action. If you command your pact mount to attack it will take its full round of attacks on the specified creature. Should your Pact mount be destroyed it, you may re-summon it at the end of a Short or Long Rest. As well, you gain proficiencies in a Lances and Polearms as well as medium armor. 

Riders Spirit

Starting at 6th level you are able to for summon the spirit of the rider and affect abilities you and your mount. 

You can summon your mount to your side 

Additionally, you may infuse your mount and your attacks with elemental energy. Upon activating this ability you choose one of the following damages (fire ,cold ,lightning, thunder, necrotic, or radiant) and add 1d8 damage to your and your mounts attacks.

You may use this feature a number of times equal to your Proficiency Modifier, regaining all uses of this feature after finishing a Short or Long Rest.

Eldritch Cavalier

Upon reaching 10th Level you can now use the bond between you and your mount to empower you and your mount. 

You can now cast spells through your mount

Your bond extends  from 10ft to 30ft

You may also Summon your mount as a additional size larger

Lastly your mounts attack become magical for the purposes of overcoming resistances.

Master of Mounts

Once you have reached level 14 you and your mount are one, you gain the freedom of the wilds and you can summon it when you require it. 

Now you can while riding your mount:

- You add you spell attack modifier to your mount and mounted attacks

- Your elemental added damage is raised to 1d10