Hearthpwn

The only cards i think would be replaceable against aggro are Valeera and sap. Quest-rogue is some skill intensive deck and requires good decision making. I would just practice and learn more about the matchups. I think quest-rogue is a little bit like cubelock where experienced players perform much better with the deck. But if you face only aggro i would play warrior or warlock . They beat aggro pretty consistently and it doesn't stresses you so much to overthink every turn just to beat some stupid facedecks

i wouldn't tech in too much against aggro. This decks intent is to farm slow control decks. If you play much against aggro at your rank i would switch the deck for better chances

I think arugal doesnt fit in the deck to well. Its ok but i think pyros or mad bomber may be a better choice. Arugal is only good if you play him early and the opponent cant answer him immediately and in later turns mostly a dead draw. Intellect + arugal is a slow combo and a big tempo loss. Often you loose the board on turn 5-6 and then want to start to burn the face. so an additional wyrm or apprentice from arugal doesn't matter much because you'd rather burn the face than playing some small minions which cant contest the board or get easily removed. 

Good

i'd rather play the normal spiteful-list. I think dragon synergies are just not strong enough at the moment 

yes after everyone complained about it, he linked it. i have eyes too. thank you

Zola is a very versatile card that can generate value. If you find yourself in need for another boardclear just copy Lord Godfrey, if you need more value or taunt you can copy Voidlord or just copy Gnomeferatu in hope to burn a viable target or win in fatigue. If you want to add in treachery and Howlfind --> build another deck. If you pull it with possesed lackey  in stead of a voidlord its very bad and will loose you the game. Although treachery+doomsayer is a combo but the cardslot is to valuable to put in treachery just for this

Most of the time you want to play Doomsayer at turn 2 or 3 to stall and prevent early aggression. If you play against cubelock and you have the coin, play it on turn 3 to prevent a giant on turn 4. Also you can play it on a clean board after Twisting Nether to set up your Bloodreaver Gul'dan or just to reset the board

I see more control mages those days. rebuke could be a viable tech choice. I think we are just too early in the expansion. The meta is still not settled 

i tried it with elementals but i think they are really weak as tribe and the deck doesn't work really well against the meta decks

ok no more ridicule from me. I give you a little friendly advice for playing hearthstone. 1. You have to be clear how to win the game (gameplan)  2. know your opponents deck. maybe search on hearthpwn so you wont be surprised if you get  double mindblasted by priest 3. wrong mulligan is the most done mistake by players. Be clear what to keep in hand and what you need 4. stop playing if you are enraged because if you cant keep your cool you will loose more often. 5. Its a card game. So sometimes you just loose because of bad rng. 6. After the match consider what you could have done better or at which turn the game went down the hill for you. Also if you done so poorly with this deck learn hearthstone basics. How to trade and when to go face etc.  or just try another deck which fits you playstyle. Cubelock is not the easiest deck to play. Midrange hunter is easy to play and you can reach till rank 5 most of the time with no problems.

its only good in mirror matches and only if you draw it early. Very low tempo card and useless against aggro. Not worth playing a 3/6 taunt on turn 6

Lol. really funny... i think your skill is the problem, not the deck. I reached legend with cubelock. But maybe i just got incredibly lucky ;D

I reached legend last season with cubelock and i am currently again legend 400 with cubelock. It is worth if you want to climb the ladder

I think she is really useful. It gives  the deck OTK potential(25dmg combo) and you can flood the board with giants or voidlords if needed. Also you can proc your cubes better if you used all your pacts or they got destroyed. I wouldnt craft her if you are low on dust because we are early in the expansion and there may be more decks that you would want to play than cubelock. I think baku is a safe craft