This is just a version of Libram/Pure Paladin that I injected with a larger dragon package.  It really just gives us an excuse to play Dragonrider Talritha before it rotates since it never saw any competitive play.  It does surprisingly well in this deck with the addition of Redscale Dragontamer and Bronze Explorer to increase dragon consistency and allow you to curve out which pure paladin always wants to do.  is a great target to hit with Talritha buff because it will keep the dragon train going just on its own.  We also have Sand Breath's to take advantage of the dragon package.  Pure Paladin wants to win the board and keep it and doesn't have rush or broom, so Sand Breath lets you trade up or just make your minions more sticky while being a cheap activator for High Abbess Alura.

The rest of the deck is pretty standard Pure/Libram stuff and some good paladin cards.  You could run Lady Liadrin over Lightforged Crusader.  They do similar things but I've liked Crusader a bit more in this version.  

This isn't the best version of pure paladin by any means but I did try to optimize it for competitive play.  I tried out other dragon synergy cards like Dragon Speaker and Bronze Herald but they were just to weak to justify and in the end the list ended up a lot close to a regular Pure Libram Paladin.