Legendary Resistance(3/day). If [Conquest Paladin] fails a saving throw, he can choose to succeed instead.

Aura of Conquest. If a creature within 30 feet of [Conquest Paladin] is frightened of him, its speed is reduced to 0. Additionally, the creature takes 10 psychic damage at the start of any turn within the aura.

Aura of Courage. [Conquest Paladin] and all creatures he considers friendly within 30 feet of him can't be frightened while he is conscious.

Aura of Protection. [Conquest Paladin] and all creatures he considers friendly within 30 feet of him gain a +5 bonus to all saving throws.

Divine Health. [Conquest Paladin] is immune to disease.

Divine Smite. When [Conquest Paladin] hits a creature with a melee weapon attack, he can expend one spell slot to deal radiant damage to the target, in addition to the weapon's damage. The extra damage is 2d8 for a 1st-level spell slot, plus 1d8 for each spell level higher than 1st, to a maximum of 5d8. The damage increases by 1d8 if the target is an undead or a fiend, to a maximum of 6d8.

Great Weapon Fighting. When [Conquest Paladin] rolls damage with Graz'tchar, the Decadent End, he can reroll 1's and 2's and must use the new roll. 

Great Weapon Master. When [Conquest Paladin] makes an attack with Graz'tchar, the Decadent End, he can take a -5 penalty to the attack roll and add +10 to the damage roll. 

Improved Divine Smite. Whenever [Conquest Paladin] hits a creature with a melee weapon, the creature takes an extra 1d8 radiant damage(included in attacks).

Kiss of the Changebringer. [Conquest Paladin] has a +3 bonus to all saving throws.

Scornful Rebuke. Whenever a creature hits [Conquest Paladin] with an attack, that creature takes 5 psychic damage, as long as [Conquest Paladin] is not incapacitated.

Special Equipment. [Conquest Paladin] has Armor of the Valiant Soul and Kiss of the Changebringer. He wields Graz'tchar, the Decadent End.

Spellcasting. [Conquest Paladin] is a 10th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 19, +11 to hit with spell attacks). [Conquest Paladin] has following Paladin spells prepared:

1st level (4 slots): Armor of Agathys, Bless, Command, Compelled Duel, Searing Smite, Thunderous Smite, Wrathful Smite
2nd level (3 slots): Branding Smite, Hold Person, Spiritual Weapon
3rd level (3 slots): Bestow Curse, Blinding Smite, Dispel Magic, Fear, Spirit Shroud 
4th level (2 slots): Death Ward, Dominate Beast, Find Greater Steed, Staggering Smite, Stoneskin
5th level (2 slots): Banishing Smite, Circle of Power, Cloudkill, Destructive Wave, Dominate Person

[Conquest Paladin] casts Death Ward every morning on himself and [Nightmare].

Toughness. [Conquest Paladin] has an additional 40 hit points. 

Multiattack. [Conquest Paladin] makes 2 (3 after activating Invincible Conqueror) attacks using Graz'tchar, the Decadent End.

Graz'tchar, the Decadent End. Melee Weapon Attack: +14 to hit, reach 5 ft., one target. Hit: 14 (1d12 + 8) [slashing] damage plus 4 (1d8) [radiant] damage. If the target has an Intelligence score of 4 or higher, the target takes an additional 10 (3d6) [acid] damage and must succeed on a DC 19 Charisma saving throw or be charmed by [Conquest Paladin] for 1 hour. If [Conquest Paladin] attacks this creature again while it is charmed in this way, the extra acid damage increases to 35 (10d6) [acid] damage and the charmed condition ends. If the target succeeds on its saving throw or the charm ends for it, it can't be charmed again in this way for 24 hours. The acid damage of this weapon appears to be radiant damage to all who perceive it. A true seeing spell or similar magic reveals that the sword is actually a rusted, pitted blade dripping with acid.

Armor of the Valiant Soul(1/day). [Conquest Paladin] casts Command (spell save DC 19) on 5 targets and issues one command. 

Cleansing Touch(5/day). [Conquest Paladin] can use his action to end one spell on himself or on one willing creature that he touches.

Divine Sense(6/day). [Conquest Paladin] knows the location of any celestial, fiend, or undead within 60 feet of him that is not behind total cover until the end of his next turn.

Invincible Conqueror(1/day). As an action, [Conquest Paladin] can magically become an avatar of conquest, gaining the following benefits for 1 minute:

• He has resistance to all damage.

• When he takes the Attack action on his turn, he can make one additional attack as part of that action.

• His melee weapon attacks score a critical hit on a roll of 19 or 20 on the d20.

Lay on Hands(100/day). [Conquest Paladin] touches a creature to restore a number of hit points to that creature, up to the maximum amount remaining in his pool. Alternatively, he can expend 5 hit points from his pool of healing to cure the target of one disease or neutralize one poison affecting it. He can cure multiple diseases and neutralize multiple poisons with a single use of Lay on Hands, expending hit points separately for each one. This feature has no effect on undead and constructs.

Teleport. [Conquest Paladin] teleports, along with any equipment he is wearing or carrying, up to 120 feet to an unoccupied space he can see.

Smite. [Conquest Paladin] can cast a smite spell as a bonus action, expending a spell slot accordingly.

1st level: Searing smite, Thunderous Smite, Wrathful Smite
2nd level: Branding Smite
3rd level: Blinding Smite
4th level: Staggering Smite
5th level: Banishing Smite

[Conquest Paladin] can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. [Conquest Paladin] regains spent legendary actions at the start of his turn.

Attack (Costs 1 Action). [Conquest Paladin] makes one attack using Graz'tchar, the Decadent End.

Move (Costs 1 Action). [Conquest Paladin] moves up to his movement speed without provoking attacks of opportunity.

Teleport (Costs 1 Action). [Conquest Paladin] uses Teleport.

Channel Divinity: Conquering Presence (Costs 3 Actions). [Conquest Paladin] forces each creature of his choice that he can see within 30 feet of him to make a Wisdom saving throw. On a failed save, a creature becomes frightened of [Conquest Paladin] for 1 minute. The frightened creature can repeat this saving throw at the end of each of its turns, ending the effect on itself on a success.