Deus Vult

A crit focused meme subclass that might be a little too strong.
Version with Oath-Spells: 1305962-deus-vult.

Thy Will Be Done

Starting at 3rd level, you can now use smite with any attack of yours that hits an enemy, and if you have the Shield Master Feat, you may now use shield master shove without attacking prior.
In addition, once per short rest whenever you land a critical blow with an attack, You may cast divine smite at the highest available level without consuming a spell slot.

Mere Flesh Wound

Starting at 3rd level, whenever an opponent lands a critical strike on you, you may declare that it is only a flesh wound, reducing the total damage taken by an amount equal to your paladin level plus your charisma modifier.

Once you use this feature, you must finish a short or Long Rest before you can use it again. At 7th and 20th level you can use it an additional time before a rest.

Channel Divinity

Channel Divinity: Tell Me How The Grass Tastes Little Man
Guarantee a max roll when using any kind of shove when against a target your size or below, or advantage against any other size.
When doing so you should say the line "Tell me how the grass tastes little man".

Channel Divinity: Last Stand
Once per long rest whenever you would normally drop to zero hit points you instead are reduced to one health and gain a shield that reduces the next incoming source of damage to zero.

Smite Slots

Starting at 7th level, grants slots equal to your proficiency modifier.

These slots can be used interchangeably with spell slots when using any form of smite.

Smite slots are equal to spell slots in every way, but they can only be used to smite.
One smite slot is one level one spell slot, two smite slots are worth one level two spell slot, so on and so forth.

The Crusade Knows No Bounds

Starting at 15th level, all saving throws you make as a result of weather or terrain is made with advantage.
You also ignore all difficult terrain.

Jolly Co-Operation!

Starting at 15th level, allies other than yourself within your aura deal an additional 1d8 of radiant damage when they land a critical strike, and when they do, you gain a temp health shield equal to half of the radiant damage dealt.

Parry This You Fucking Casual

Starting at 20th level, once per long rest you can force a crit on any of your attack rolls.
You may decide to do this at any point during an attack, including after missing.
You really ought to say the line "Parry this you ******* casual"

Gross Incandescence

Starting at 20th level, as an action you may begin shedding bright light in a 60-foot radius and dim light for an additional 60 feet. The light is sunlight and can be colored as you like. Completely covering your body with something opaque blocks the light. This ends if you dismiss it as an action.

If any of the area overlaps with an area of darkness created by a spell of 3rd level or lower, the spell that created the darkness is dispelled.