Hearthpwn

sorry mate what is that jade blossom for? :-O

Just some extra ramp. We don't want to put Mire Keeper or Greedy Sprite in this deck because of the Oaken Summons, and we already have all the other ramp cards, so Jade Blossom is pretty much our only choice if we want more ramp.

Hi, wanna try u deck look fun
any tips again mage face?

Tempo Mage is sort of scary because this deck has a slow start. Look for cards like Deathlord to deal with the minions, then look for Rotten Applebaum, Oaken Summons, and Branching Paths to heal yourself. Other than that, your best card will be the Death Knight, since you can gain 3 armor per turn. 

Have you thought about running Master Oakheart instead of Ultimate Infestation?  It has a chance of pulling out Hadronox, along with a guaranteed chance at Deathlord if they don't end up in your hand first.

If anything, Master Oakheart would probably be better to replace The Curator now that I think about it. Not only does it basically draw the card, it also plays it for you. I would generally prefer to keep Ultimate Infestation just because of how strong the card is. I originally had 2, because I thought it would be worth it for the extra consistency in the matchups where it is needed.

Why not adding the 4/5 Taunt that its cost is reduced by 2 if the opponent has 3 or more minions?

I don't see much of a reason to. After you play the taunts once, you generally won't be replaying them. You will get them back for free with N'zoth or Hadronox. Because of this, you generally want bigger taunts since you only have to pay mana for them once, and you get more value each time you bring it back for free. The cost is only important early on and against aggressive matchups. But this deck isn't designed to beat aggro decks and doesn't really care about the early game. It cares about ramping up, playing a bunch of taunts, and bringing them all back several times to out value your opponent in the long run.

I swap 1 ultimate infestation for curator, nice deck

I am currently 11-2 with this deck except I made some changes, I removed both branching paths, one Ultimate Infestation, one Poison Seeds, and one Jasper Spellstone. I added 2 copies of Swipe, one Spellshifter (I would add Bloodmage Thalnos if I had him), one Feral Rage, and Kel'Thuzad. 2 copies of Ultimate Infestation is just unnecessary, the second one ends up as a dead card in fatigue. I could never power up 2 spellstones, so the second one is just 2 damage. Poison Seeds is always too slow, but the combo of posion seeds into spellshifter into swipe is game-winning. The addition of double Swipe is pretty obvious since this deck doesn't win against paladin without it. All in all though, the base of this deck was great, it just needed some tweaks. Edit: Forgot to mention the Death Knight. You would think that in a slower deck like this he would fit in great, but in the end not really. The deck has enough resources without him and you basically have to pick poison everytime or clutter up your hadronox pool. I decided he wasn't worth it.

Hey, thanks for the suggestions. I made some changes to the deck. I added in a Curator, 2 Carnivorous Cubes, and 2 Swipes. I took out 2 Sludge Belchers, 2 Lesser Jasper Spellstones, and 1 Ultimate Infestion.

There are a few reasons why Branching Paths is in this deck. Now that we only have 1 Ultimate Infestion, the armor gain and card draw becomes more valuable. However, many people don't realize that with N'zoth and Hadronox, it is not uncommon for this deck to have a massive board. Giving all your minions +2 attack with Branching Paths can be game winning. That is potentially an additional 14 damage to go face or to trade with.

Poison Seeds is also a tech card against the Giants deck swarming the Wild meta. Against decks like Giantslock (which is one of the best decks in the meta ATM), Druid has no way to deal with a massive board of giants on turn 5. The only way to win is to make sure that you have Poison Seeds in your hands to react right after. Running only 1 copy is not consistent enough to beat that deck. If I had the choice, I would personally not run this card since it is not very impactful in most other match ups. If you haven't faced many Giantslocks I would consider cutting both of them.

I also agree with your thoughts about Spellstone, I was worried that there wasn't enough ways to gain armor in this deck and they wouldn't be every effective, so I decided to remove them.

Speaking of the Druid Death Knight and cluttering your Hadronox pool, that is the reason why I originally didn't include him. However, I decided that Sludge Belcher also wouldn't fit in this deck for the same reason. The 1/2 minions that come from the Deathrattle also have taunt and can clutter the Hadronox pool. This makes our N'zoth weaker, but makes our Hadronox stronger.

I decided that Spellshifter and Thalnos wouldn't fit very well in this deck. The 3 card combo of Swipe, Poison Seeds, and Thalnos/Spellshifter is much too expensive and slow. You would either need to wait til turn 10, or you would need to wait atleast 2 turns to set up the combo. Usually, your opponent won't have a significant board on turn 10, and waiting 2 turns against aggro decks is too long. I personally think that this deck isn't the best against aggro, and that you need to rely on your Deathlords in order to win the aggro matchup.

Kel'thuzad is also a very interesting card that I never considered. I decided to add in 2 Carnivorous Cubes for a similar effect. Not only do they give us a way to trigger our Hadronox (besides Naturalize), they can also potentially give us A LOT of value by either giving us more Hadronoxs or more taunts for our Hadronox. However, it is not uncommon for the 2nd Hadronox from Carnivorous Cube to be useless since the first Hadronox will give us a full board, so I think this might require some experimentation. If the Cubes do not work out, I will definitely add in Kel'thuzad as it is not only less clunky, but significantly faster than waiting for your cubes and your new Hadronoxs to die. Carnivorous Cube is much greedier and provides more value, but I think Kel'thuzad is probably going to be better.