Hearthpwn

I tinkered around with Rogue this season mostly for the fun aspect and realized that Valeera has always got the tools to be a powerful control opponent. This deck provides you with an insane amount of options at every point in match and I dare to say, has a strong match-up against any competitor. 

***IMPORTANT CHANGES***

Deck has changed a lot.

I tinkered in a Blade Flurry to solve the problem of board clears, even with the nerf its still working great. The 2nd hard removal (in the matter of Blade of C'Thun was taken out and Twin Emperor Vek'lor with it) - it worked very well in long matches but because the meta is so fast, you don't have time for such combos; Big Game Hunter took its place (still testing it!). Brought back the Shadowcaster as I felt he would get more value out of the new cards. Also, now you got Doomsayer.

I'll detail my card choices and changes down below in the updated guide

The Guide

1. General Mulligan
2. How to play, game strategy, card analysis
3. Replacements
4. Tips & tricks
5. Video / Screenshots (in construction)

1. General Mulligan

Against Aggro:

 Against Midrange/Control:

 Curve well against aggro and use your tempo cards to control the board as intelligently as possible. Acidic Swamp Ooze can be good early against Shaman's Doomhammer. Against Warrior, keep the Ooze for their Gorehowl.

 2. How to play, game strategy, card analysis

Rogue is known for their tempo plays and filling the mana curve very well. Do the same with this deck: Control the board as optimally as possible. You'll have a lot of decision making because most of the times you'll have many possible answers.

1. Bread and butter against aggro: If you get to dagger up against aggro, keep at least one durability on it, never attack again because you'll need it for Blade Flurry. Make use of Deadly Poison efficiently (if you have a 3-1 dagger, keep it and use it for board AoE). Also, make use of spelldamage! Your Bloodmage Thalnos is there for a reason.
2. Perdition Blade serves the same purpose. Best against aggro, this card can easily remove 2 minions/turn and has 2 attack for the board clear. Same with it, keep it at 1 durability for board-clears.
3. Southsea Squidface - solid body that on death provides your dagger with enough power to use with a Blade Flurry. Greater card with the addition of the latter.
4. Doomsayer turn 2/3 depending on case. Enough said.
5. Play as greedy as possible versus Priest & Control Warrior and make them use removal in vain. You can play any Deathrattles because you have N'Zoth later to back you up.
6. If you can prevent lots of damage and you didn't draw your Reno, Preparation + Assassinate is NOT a bad play in many cases. You can get up to 4 Reno Jacksons in this deck so healing is not at all a problem.
7. Jeweled Scarab can give you Earthen Ring Farseer, Fan of Knives, Brann Bronzebeard, Edwin VanCleef and Shadow Strike all useful tools for this deck. The card is insane in Rogue. Choose wisely.
8. Xaril, Poisoned Mind's value is over the roof. Keep Bloodthistle Toxin for what Battlecry you need the most depending on the matchup.
9. If you want to drop N'Zoth, the Corruptor and your opponent still has boardclears, Shadowstep it back to your hand to make your opponent cry. Remember, the new Deathrattles summoned by N'Zoth add up to the second summon.
10. If you drop Reno Jackson and think about getting it back to your hand with Shadowstep, think again. Can the opponent remove it? Does he want to remove it or go face again? This should be clear for you because if you let it stay on board, you can trade with it and Shadowstep/Shadowcaster it next turn.
11. The Black Knight always finds a target in this meta. ***TAKEN OUT*** If you get matched against lots of control, you can put it back in.

3. Replacements

Deck creation may be rough for some because it lies at around ~9000 dust. Must legendaries/epics to have are:

• Reno Jackson - this deck can't work without him. He's so easy to obtain from the first wing on Explorers. No replacement
• Sylvanas Windrunner - amazing all-around card. Works in many decks. Should be top priority to craft in any Collection. Weaker replacement: Cairne Bloodhoof
• N'Zoth, the Corruptor - reliable and powerful endgame card, the most powerful of the old gods. The value this guy has with this deck is just disgusting (you can also use Shadowstep on him). Weaker replacement: Ragnaros, Ysera or another Journey Below (keep in mind that you can mess up your Reno with that).
• Xaril, Poisoned Mind is not as important as those above but he sure does a lot of work too. Very flexible and reliable legendary. Fair replacement Tomb Pillager
• Shadowcaster. This guy has its solid place in the deck but if you don't have 400 extra dust to spare for him, try Stampeding Kodo or a Shado-Pan Rider

 4. Tips & Tricks

• Punish Druids & Shamans with Sap
• Shadowstep N'Zoth in heavy control matchups.
• Shadowstep or use Xaril's Poison/Shadowcaster on Reno almost all the time. If you get to Fatigue, the 4 possible Renos in this deck are MVP.
• Follow your opponent and when you feel he over-commits on the board, board-clear with your Blade Flurry. AGAIN, always keep one durability on your dagger to make your board-clear cheaper!
• Journey Below anytime you got spare mana. Anub'arak is really insane against control but choose something else against aggro. Xaril, Poisoned Mind, Sylvanas Windrunner & Tomb Pillager are amazing. Sometimes even Huckster works well.
• Always watch for big Betrayal plays. Its not a card to be overlooked!

General Tips:

Keep your options alive for any kind of play expected from the opponent. Don't be greedy. This is the first deck I ever played where Dagger + Pass is viable against a Heal + Pass Priest.

You got lots of threats and lots of answers. Rogue can do both at the same time so plan and go for big plays.

I don't know how but Burgle and Huckster always find me useful tools.

Hold Acidic Swamp Ooze for Gorehowl, let that Fiery War Axe swing away happily.

Use Reno Jackson + Preparation + Assassinate against a Freeze Mage's Alexstrasza (you can also Shadowstep Reno back to your hand to make the Mage even sadder)

*VERY IMPORTANT* Have Sylvanas Windrunner on the table if you expect your opponent to play C'Thun.

 Try it out and you'll have the best time playing it. I'll throw in a detailed guide (maybe a video) if you guys like it. Maybe at 5 upvotes or sooner :).

If you guys are having fun with this deck/getting some insane plays, grab a screenshot and post it here, I'm very interested where this deck can go.

Cheers & feedback appreciated!