Hearthpwn

Duplicate was compared to Arcane Intellect back when it came out, both  focus on card economy, which for mage means to forgo tempo and invest mana into your win condition.  Given how Arcanologist creates a mini engine in your deck,  Arcane Intellect is right now best used after you exhaust most of your hand and look to  fish for burn to finish the game, Freeze Mage being the exception . Duplicate saw its fair amount of play alongside grindier mages, with minions such as Sludge Belcher and Ethereal Conjurer in decks with a spin on exhausting their opponents resources (Fatigue Mage/Concede Mage).   Again, given how the game has evolved, more card generation being introduced in the game and mage being shaped by spell generation, this card follows said flavor of that spin on Duplicate. If this card is to make it to the lists, this card has to advance Mage's gameplan considerably, that is, you have to consistently get an advantage off playing this. Either through your opponent making a suboptimal play and you capitalizing on other secret synergy cards like those in Secret Mage, or being on a slow meta in which you can extend the game to the point that you can wait for a high value target. In other words, either you decide this is the next best card for your greedy deck for a greedy meta, or somehow this card works like a better Mirror Entity in Secret Mage. I believe the way we'll see this card is with the tag "Created By: ..."

The hero power reminds me of Chromaggus. A value oriented card that allows the player to bypass deckbuilding limitations. Granted, from the times of BRM these card generation cards have become more common. Which in turn gives this card an extra potential  upside (highrolling people with their class generated cards), along the obvious one: you can choose which card to duplicate. Flavor-wise this goes alongside Shadowcaster and Shadowstep . The potential of the card reinforces the idea of rogue being a Control Killer. Sadly, it just costs too much to make much of an impact against faster decks. On another note while the Battlecry should buy the rogue a turn, it is a fairly underwhelming effect. Your opponent can develop on board using his 9-10 mana, Rogues unlike Mages have no good AoE, and  unlike Ice Block you won't have enough mana to squeeze in burn or card draw to use the extra turn effectively. Summarizing, this card feels like it costs 2-3 mana more than it should. From what I remember, Blizzard says they work 2 expansions in advance, which if they predicted quest rogue meta explains to an extent why this card is so expensive. At 6-7 Mana It would be an Iceblock + 1 mana 5/5 Charge. Maybe there is something almost as busted in the expansion we could see the card seeing a lot of play in competitive. 

I see no reason why you couldn't double coin. Its an innervate that required a set up from a 9 mana card. Granted, at 10 mana you shouldn't start your turn with coin into coin, but if you run this on a miracle shell thats an extra mana. I don't think this card belongs on that deck though.

Actually reminds me of Soul of the Forest it has same cost and it is exactly the kind of spell you want to play your Violet Teacher with. As for older archetypes this is the card a player like J4CKIECHAN would have thought of running in the pre yogg nerf Yogg Token Druid. It may sound too slow and memey nowadays but Soul of the Forest / Savage Roar + Onyxia can be a 2 card combo that can close up a game. Granted big ol' Yogg-Saron, Hope's End is no longer the power house it used to be and Azure Drake and Emperor Thaurissan are leaving Standard; not only that, we are flooded with Pirate Warriors, yet if we can maybe dream of a use for this card maybe, just maybe we can meme with it and have some highlights in our games.

Jungle Panther Scary With a higher % of dying to Mad Bomber ? 

First of all,  a 2/3 stat line does not contest the lovely 1 drop 1/3's that blizzard loves to push archetypes to viability, and I'm fairly sure that so long they are on the rotation those cards will see play. It is like claiming that Sunfury protector for tempo will do something  against a Shaman with a good start. It dies to  Spirit Claws  (requires highroll or Bloodmage Thalnos),  feeds starts like Totem Golem / Tunnel Trogg into The Coin + Feral Spirit; against Mages the only spell it survives is Arcane Blast  at 0 spell damage which is a card they usually save to deal with the 4 health minions rogue usuallly runs; also this card is irrelevant against almost any Zoo start.

I don't understand the argument of the player being able to choose to bring back a card or not, that implies that said player is fine with running a vanilla 2/3 in his deck, and that at best said player is happy to run a 2/3 Youthful Brewmaster that you have to activate.  As for the Jade Golem argument, I was under the impression that the  Jade Golem build would work with a deathrattle engine ( All the Jade Golem Cards + Journey Below ,Unearthed Raptor,Shadowstep, Xaril, Poisoned Mind and N'Zoth , and some other staples).

This card  does not seem to me that it was meant to be viable in a good constructed deck, and it shows, it is a fun card. It seems that the designer's philosophy was the same as with Purify. And the problem is that they decided to make a big release of it. That is it.

Kazakuz 's Potion and this card working as a Spell Ramp for something dumb like Kabal Courier Mind Control aside. This card will mostly feel like either a high roll Firelands Portal (Burn Spell/AoE  + Minion Development or with Firelands Portal itself), or like Ancient of Lore ( Cabalist's Tome, Arcane Intellect). Ranging from situationally good to broken should be enough to ensure it being played on 100% of the Highlander Mage lists. Plus I bet that Golden Version has some SICK animations going on.

The whole Grimestreet buff in hand theme is meant to be seen as a viable way to build Mid-Rangey decks. A plan and play on curve deck like that could use a bomb to finish up the game, a card likeC'Thun . Don Han'Cho is not that bomb, but it can help you create one while giving you a body that is good at trading down (at least 5/6). It has the same problems of Grimestreet Cards of being bad on a topdeck situation, but at least it can work w 2 cards in hand to make back to back strong plays on a game of attrition ( Dopplegangster ). I don't see him being played on control as it is a win more card in those decks, Control is more about stabilization. Now as for combo, I could only see it in Warrior, as the other 2 classes don't have enough card draw to make it work. 

(‘ ▽`  )  'Member when Rogue identity had to do with weapons?  
'membering aside, this card follows the Burgle Rogue thematic that has been pushed to reshape the class identity. My main complain is that said identity hasn't taken a good deck of its own, and this card doesn't seem to make it. Not to mention that what was left of the class identity (Miracle Rogue engine) is alive thanks to a soon to be gone card:  Tomb Pillager . Now, with the new faction system there could be some surprises that could help push an Ethereal Peddler deck, some sorth of Lotus-Thief-Tempo Rogue. So far the Lotus Agents drew the short straw, as the 3 classes already run Azure Drake . Not to mention a Thief-Tempo Rogue would like to play Ethereal Peddler on 5, but we could still get some good surprises from the remaining cards. If anything, if this expansion fails and there are complains on Rogue starting the next rotation, they will not be shy to push Burgle Rogue as they did with Discard Lock (please blizzard don't do this).

Seriously dude, you could do that same "combo" with any minion that gives buffs... 

There are some videos of streamers pulling of the Shadowstep / Shadowcaster combo to summon 5 copies of Ragnaros or whatever, and yes the result is pretty fun to watch. But guess what's not fun? Watching them lose the first 99 times they try that combo, since it's just not good. 

When people say they want variety, they want multiple good and viable decks instead of being forced to play the one overpowered deck the meta has. Not a somewhat fun combo that works 1 in every 10 games. 

MINIONS in your hand have echo

wow, turn3 ironwood golem, turn4 this into violet teacher which then probably summon a token. it's gonna hard to get rid of her behind big taunt

Quote from jim1608 >>

So far this expansion has been so RNG heavy omg.

But rather than just wondering about having this on my deck, I wonder the impacts of getting this from Medivh for example.

Imagine Big Priest plays Free From Amber with Atiesh and it brings this up. At the end of the turn it could cast the Spell that brings a 5/5 copy of even something else from your deck, or cast Mind Control which will guarantee you'll steal an enemy minion.

Maybe have this in hunter and run only call of the wild too? Idk, it's very RNG heavy and meme-y but I wouldn't say it has NO potential.

You can definitely reach rank 5 with it. However going all in on this deck is kinda risky as cards such as Grommash Hellscream and Scourgelord Garrosh are at the moment only being played in this deck or other decks that are niche. If don't have much dust it's probably better to craft cards that are used in multiple good decks.

A good player will also know when you've played this and play around it and give u some junk that's only good in their deck and not yours.  People have been playing around mirror and potion of polymorph for ages now.

As a mathematician, I assume you play Roll the Bones with a random amount of cards in your deck between 0 and 25.

Left column: Amount of deathrattle minions in your deck

Right column: Avarage amount of cards drawn

Because of my assumtion, these numbers are slightly smaller than it would be in practice, because you usually have drawn less than half of your deck when playing a card on avarage. But you need to have 20+ deathrattle minions in your deck for this difference to be noticable.

Formula: 1/26*Sigma (lower limit: i=0) (upper limit: 25) (i+1)/(i+1-x*i/29)

where x is the amount of deathrattle cards in your deck

Actually, it's 11, due to the fact that drawing a DR minion decreases the value of "r".

And for those curious, to reach  "draw 2 cards on average", you need 15-16 DR cards.

Too inconsistent...