Hearthpwn

Hi everyone, I recently "dusted" off an old deck I built back in Un'Goro, Pay2Win Priest from Kibler:

FUNNEST DECK EVER! PAY2WIN Priest Combo Priest Deck by TheFallenAngle - Apr 30, 2017 View Deck String Export to BBCode Export to Cockatrice Export to MarkDown Export to Html Clone this deck
Minion (17) 1x Elise the Trailblazer 1x Lyra the Sunshard 1x Medivh, the Guardian 2x Cabal Shadow Priest 1x Mana Geode 1x Wild Pyromancer 1x Kabal Songstealer 1x Kabal Talonpriest 2x Northshire Cleric 2x Priest of the Feast 2x Radiant Elemental 2x Tar Creeper	Ability (13) 2x Dragonfire Potion 2x Shadow Visions 1x Free From Amber 2x Potion of Madness 2x Shadow Word: Death 2x Power Word: Shield 2x Shadow Word: Pain
Loading Collection

it was the first deck I REALLY enjoy playing with, and since Kobolds and Catacombs I got bored of the meta ( call the salty thread police but I still think Bloodreaver Gul'dan is bullshit ) and I still dislike the meta but if I wanted to climb I have my aggro Mage, it's just that lately I wanna play for fun, and this deck is probably one of the most fun out there.

So, after my long premise, I want some help "refining" the deck, and by that I mean what cards from the Knights of the Frozen Throne onwards should I include? I want to preserv the spirit  of the deck, so obviously Lyra the Sunshard, Elise the Trailblazer and Medivh, the Guardian have to stay, a long with their synergiy cards like Radiant Elemental, Shadow Visions and Free From Amber, also at the time I din't have enough dust to craft Mana Geode so I decided to use Arcane Anomaly instead. 
You can see my card collection in my profile ( it's mostly updated ) and I have about 1500 dust to spend, and the will to disenchant other cards if necessary. 

I was trying to put my Lady in White alongside Nightscale Matriarch for value and just because I have them and I want to use them, but maybe the Lady needs more synergy cards to work well, what do you suggest I could craft to improve the deck? Also, I tried Psychic Scream but most of the time I have too many cards on board to use it as a good board clear since most of my minions can give a lot of value.
Thanks for the attention and time if you read all this, cheers!