Aim subjugate the board with Librams and memes, taking MatianBuu Libram Pally with cho vid below...
https://www.youtube.com/watch?v=GXwyOqwcC1U&t=819s

...I was inspired by WOW Hobbs to make the most memey Libram Pally of all time, mwhahah. (also I wanted an actual good base for the deck)

Lets get into the deck:

The Librams: are Libram of Wisdom (the essence of any Libram Pally) (give a minion +1/+1 and deathrattle to bring it back to your hand) Libram of Clarity (draw 2 minions from the deck and if the spell cost 0 give them +2+1) Libram of Divinity for the extra ooph (give a minion +3/+3 and bring it back to your hand if it cost 0), and finally Libram of Hope (restore 8 health and summon an 8/8 taunt and divine shield minion) we want to cast this on minions so that Lynessa Sunsorrow will cast it but if you need health don't hesitate to use it on your face.

Discounters: Aldor Attendant an essential one drop (1/3 that discounts Librams by 1), Aldor Truthseeker (4/6 that discounts Librams by 2) and Interstellar Starcutter (a 3/2 weapon that discounts Librams by 2) for double discounts. We also have Astral Vigilant to get more copies of our Aldors and Interstellar Reseacher (draws a libram and when you cast a spell draw another one). 

We also Knight of Anointment to draw our Librams, and we run Crystology and Small-Time Recruits to draw our 1 cost minions

The Shabah  اَلصَّحَابَةُ (legendaries) of the deck

Lorewalker Cho): The lovable Pandarian who fights you in the tutorial is here to fill the opponents hand with our librams since they are trash to them, but make sure you dont't uses him against another Libram Pally under any circumstance.

Kotori Lightblade: This divine Ankoan is here to spead the wisdom and hope of our deck (well at least for us) Kotori can help us get use more Librams of wisdom

Prince Renathal: This Venthry will help use take back the throne by makeing our deck 40 cards enough said.

Runi, Time Explorer: This Draenie is her to scout out future locations for our conquest (she is also Xyrella's daughter). Location we want out The Nighthold (cast 3 random secret) Outskirts of Lordaenron (target a minion and destroy all that has less attack then it) Xenedar (doubles battlecries) we can uses it to make our Lynessa Sunsorrow even spicier and if we need a charger we canget Wild Rider Roost (summon a 3 cost and give it charge).

Saidan the Scarlet: This Human(2/2) secretly a the Dreadlord Balthazar is here to get buff to high heaven, whenever he gets a stat increase he doubles eventally snowballing out of control the the opponent.

Starlight Groove: This song is here to give us divine shield and we have Libram of Divinity so we basically have it guaranteed to have it up every turn.

Yrel, Beacon of Hope: This Draenie and my waifu is here to get all Librams from another timeline Libram of Wisdom Libram of Justice and Libram of Hope

Sanc'Azel: This sandcastle Elemental is here to get buffed to high heaven because we can then give minion their attack as wll as rush with the location version of them.

Sunsapper Lynessa: This Blood elf is here to cast our librams twice (any spell that cost 2 or less) but don't go too crazy with Libram of Divinity unless you want to take the mill.

Lumia: This Celestial is here to annoy the opponent by not letting them hit face m ore then once until they kill her.

Keymaster Alabaster: This human mage mage is here to get 1 cost copy of our opponents stuff (make him unkillable) if they play Kil'jaeden we can get buff copies of the demons they draw for 1.

Lady Liadrin: This Blood elf is here to get more copies of our Librams we have played, the quintessentail aspect of any Libram Pally.

Lynessa Sunsorrow: This 1/1 Blood elf is here to become a +30/30 minion and hopefully brings some Hopes's along the way (basically Sudderwock for pally).

Turalyon, the Tenured: This 3/12 is here to show that we not afraid of big minions as when he rushed into a minion will set them to 3/3, say goodbye to your massive Starship Priest.

The Ceaseless Expanse: This 100 mana 15/15 minion is here for a board clear and since we are casting lost of spells for cheap they will be at 0 at no-time.

Mulligan Guide: Just don't be too greedy or get Firestone an look at the mulligans for XL Libram Pally

I hope you enjoy this deck and make you opponents made, sorry for any mispelling's and remember flexing is more important than winnig :) 

Thanks for reading this far I tried making the descriptions of the legendaries fun and dropping lore along the way.