Hearthpwn

This is the most fun deck since Reno gone wild

Great deck  (^_^)  Not only is it winning games, but it's also incredibly fun. Unlike almost all other control decks (specifically Control Priest and Highlander Mage) it doesn't rely on RNG, which in my opinion makes it feel like my choices actually matter. I replaced one Hysteria with Backfire, as after the nerfs it became a very situational spell and even more card draw makes the list better against other value decks.

This deck was absulutely amazing. I went from diamond 5 to legend with 65% winrate. At first I didin't really understand why would you run plot twist in this deck but than I realised it's like an emergency heal button. You can easily heal 8-20 depending on how much soul fragments you have in deck. The only bad machup for me was weapon rogue. Ooze at the bottom, little soul fragments in deck, that was just a torture to play against.

Anyway, thanks for this deck, and the legend rank. Have my upvote, sir.

Wow!! Congratulations! :D Very impressive! You're welcome for the deck, glad you've been having fun and success with it!

Good deck but version with Galakrond package feels stronger overall.

Thanks! Ya, both archetypes feel pretty strong! As to what's better relies on the current meta you face

I still haven't crafted Soulciologist Malicia, but would you say that she is necessary for most Warlock decks or how would you replace her in this deck?

Speaking from experience, she's usually a way to clear the enemy board and generate some tempo.  She's 100% worth the craft, but if you need to replace her, my advice would be a second twisting nether instead.

^ I second this. Removal that also generates tempo is the best kind

I don't have Headmaster Kel'Thuzad, what do you think about running Felosophy, or are there some better replacements in your opinion.

Edit: Maybe C'thun?

Kanrethad Ebonlocke seems like an solid alternative as well, it can resurrect the Envoy as well.

Unfortunately I don't have him yet :(

Headmaster Kel'Thuzad with Cascading Disaster is just awesome and I play it in pretty much every control-ish Warlock deck. In some matchups it works as an alternative win condition. You should have seen Clown Druid's face when I took 3 of his clowns and killed him next turn :).

Headmaster Kel'Thuzad is pretty unique to replace and can offer some huge swing turns. The closest thing I might be able to think of is Void Drinker or Khartut Defender

Any replacement for Headmaster?

Pretty sure Headmaster is the least neccesary card in this deck. I have played mainly CW/highlander Warlock since Scholomance Academy and tried him for a bit. He has great synergy with obv Casceding Disaster but from my experience he feels a bit greedy.

Maybe Void Drinker or Khartut Defender

Replacement for siamat?

Hmm maybe Enhanced Dreadlord. Some controlish type minion that corrupts Tickatus