Crusader

Crusaders are holy warriors driven by fervor and zeal to enact the will of their god. 

Holy smite

Causes the next attack to smite the foes of your god dealing an extra 2d10+2 damage gaining advantage on the attack (the type of damage depends on the god your crusader is following ex: a crusader that follows a god of undeath smite would deal necrotic damage) you can use this ability twice per short rest. At levels 7,10,15, and 18 you gain +1 use of this ability and it deals an extra 1d10+1 damage 

Bonus profeciency

You gain proficiency in either Religion and History.

Honor duel

Challenge an enemy to a duel to the death forcing them to make a Charisma saving throw of 15+ your charisma modifier, if they fail the saving throw they will start to target you and against the challenged target you gain advantage and deal an extra 1d8 damage on all your attacks against them but you have a disadvantage against all non-challenged enemies. You can only have one enemy challenged at a time.

At level 18 increase the damage against the challenged target to 2d8 damage

Inspiring Cry

As a bonus action Inspire your allies in a 30ft radius causing them to get Advantage on their next attack and healing them 1d6 damage. This ability is able to be used twice per short rest,

Parry

Whenever an enemy rolls 6 lower than your ac when in range of your melee weapon (ex: rolling a 12 when you have an ac of 18) you are able to parry the attack triggering an opportunity attack without using your reaction.

Zealous Rage

After being dropped down to half health enter a zealous rage gaining an extra 8d12 temporary hitpoints and dealing an extra 6d4 damage on each attack. This can be only triggered once per long rest.