Oath of the Crystal

A warrior of light is clad in armor, wielding sword and shield. A noble warrior that fears no one and faces any foe gallantly. He has taken on the role of a leader among the warriors. Blessed by the light and bearing sword and shield, he is skilled in all aspects of combat.

Shield of Light

When you choose this archetype, shields becomes your holy symbol for your spells. You erect a barrier of light that protects you or your allies in combat. When a creature attacks you or an ally within 10 feet of you, you may use your reaction to give an AC bonus equal to your Charisma modifier (minimum of +1) towards the triggering attack. This AC bonus lasts until the start of your next turn. You can use this feature a number of times equal to your Charisma modifier + your proficiency bonus before needing a short rest.

The range of this reaction becomes 20ft at 10th level then 30ft at 17th level.

Channel Divinity: Compelled Clash

As an action, you can use your channel divinity to force the attention of creatures towards you. Creatures within 30ft of you must make a Wisdom saving throw against your spell save DC. On a fail, those creatures have disadvantage on attack rolls against targets other than you, can't make opportunity attacks against targets other than you, and attacks against targets other than you deal half damage for 1 minute.

Shining Wave

You stab your sword into the ground and then swing it to send pillars of light directed towards the target. You can expend one spell slot to make a ranged spell attack against a creature within 30 feet of you. You are proficient with it, and you add your Charisma modifier to its attack and damage rolls. A creature hit by this attack takes 2d8 radiant damage for a 1st-level spell slot, plus 1d8 for each spell level higher than 1st. The damage increases by 1d8 if the target is an undead or a fiend.

Hit or miss, each creature in a 30 feet long, 5 foot wide, 15 feet high line between you and the original target must make a Dexterity saving throw against your spell save DC. On a failed save, they take 1d6 radiant damage for a 1st-level spell slot, plus 1d6 for each spell level higher than 1st or half as much on a successful one, undead and fiends take an additional 1d6 from this effect.

The initial damage for this attack increases to 3d8 and the range of the initial attacks and length of the line becomes 60ft. at 15th level.

Crystal’s Blessing

You always exude the effects of the Aura of Life spell. Also at the start of a new day, choose one damage type and one of the following conditions: Blinded, Charmed, Frightened, Paralyzed, Petrified, Poisoned, or Stunned. You and friendly creatures within 10 feet of you have resistance to that damage type and have advantage on saving throws against effects that list that condition while you are conscious. At 18th level, the range of this aura increases to 30 feet.

Moreover, when you use the Shield of Light reaction to give an AC bonus to creatures other than yourself, they gain temporary hit points equal to your paladin level +Charisma modifier (minimum of 0), and both of these effects last until the beginning of your next turn.

Holy Chains

Once per long rest, as an action, you can shine bright light from you in a 30-foot-radius, and dim light for another 30 feet beyond that, this is considered sunlight and you gain resistance to all damage for 1 minute.

Whenever an enemy creature starts its turn in the bright light, the creatures must make a Wisdom saving throw, on a fail they forced to target you until they make a successful attack against you before the end of their turns. Creatures of an Evil alignment have disadvantage on the Wisdom saving throw in the dim light.

Whenever an enemy creature ends its turn in the dim light must make a Charisma saving throw, on a fail they are pulled 10 feet towards the bright light as they are wrapped by chains of light. Creatures of an Evil alignment have disadvantage on the Strength saving throw in the bright light.

Also, you can take one additional reaction during combat but you can only use it for the Shield of Light reaction.