Hearthpwn

The lack of brackets around the number 3 bugs me. Compare this to Preparation. Can you please hire some competent card text editors, Blizzard? 

Quote from Bandoka >>

Do you think it would stack the discount when used with Electra Stormsurge?

I don't think it will but it would be amazing if it did

Why would it not? "Your next spell this turn costs 3 less", when cast twice, equals a 6-mana reduction. 

Btw, I just noticed there are no brackets around the "3" in Haunting Vision as you usually would have when referring to mana cost. See e.g. Primordial Glyph and Preparation.  Blizzard (in)consistency for the win. 

Quote from SlydE >>

One of the worst druid cards released in a long time. Too expensive (needed to cost 2 to be playable,) too slow and too weak to silence and single target removal.

It would be busted if it cost two. Divine Spirit costs two and doesn't draw you a card, plus you need the minion to be on board before buffing it, where it can be damaged or killed if you can't do it on the same turn. This card draws and buffs the minion while it is in your hand. 

This is basically a Divine Spirit that tutors a card. I'll say it is costed fairly (especially for Druid) and could see play in some decks. 

This is good but no big deal, Hex and Polymorph are still better.

Is that you hiding behind that mask, Mysterious Challenger? You didn't even bother to change your initials!

Basically a two-mana one-off Kel'Thuzad. Very very good.  

Quote from linkblade91 >>

I usually hold back on sharing my input during the poll, but...yeah. The Sandworm is crazy powerful with The Marsh Queen, and the Cat is crazy powerful at all times lol D:

I think the Spider is my favorite. There's just something about it; the creator must be very smart and wise and beautiful.

I did consider carefully the interaction with the Hunter Quest but think it's balanced. In Quest Hunter, you actually draw your Raptors less often than you'd expect - almost every other draw will not be a Raptor. So you are not going to be chain resurrecting this minion on a consistent basis. Plus even when you do, you are only trading up a 3/2 for a 4/3 which helps you control the board but poses no immediate threat to the enemy hero and can still be silenced/transformed.

Plus this doesn't work against, say, Odd Paladin which has boards full of small minions which you can't use to kill your Sandworm and which they can buff on the next turn to kill you.

So all this does is to make Quest Hunter somewhat more viable. I can think of many existing decks that would still be more powerful than this.

Quote from jsager99 >>

Because the only card in your (now their) deck is the corrupted blood, it will endlessly draw itself and deal 3 damage, instantly killing the opponent.

This won't happen because the copies are only shuffled after the next card is drawn (from an empty deck - so they will take fatigue damage).

Why did you think Blizzard specifically added the words "After you draw"? It's precisely to prevent obvious cheese strategies like this.

Quote from Kovachut >>

But wait, if somehow I make my opponent enter fatigue and play this, this is straight up a win-condition. It will shuffle the corrupted spell over and over again and it will kill them. Sweet.

 

[edit] Off, I thought it had a battlecry effect and not a deathrattle one. Well, it still can be used in fun situations.

[edit 2] I smell a new mill Druid deck. It will run this card + Innervate + Naturalize.

Quote from 1xbenx1 >>

Quote from Kovachut >>

But wait, if somehow I make my opponent enter fatigue and play this, this is straight up a win-condition. It will shuffle the corrupted spell over and over again and it will kill them. Sweet.

 This guy gets it.

This can be a finisher in something like Tank Up warrior or some mill type thing.

Quote from interpoler221198 >>

If we did mill the opponent's deck, then we triggered this deathrattle, it would be infinity damages right?
First the spell will deal 3 damage and make two copies, then draw the exactly copy. It would be a loop till the opponent dies.

 No because the shuffling only happens after the draw. So it will not be an OTK - instead your opponent will draw this card, then attempt to draw another card (and take fatigue damage), and then two copies of this card will be shuffled into his deck.

4 Mana for a net 2/2 is poor value, at least in a vacuum. There will be times when the opponent will not have an answer to Rattling Rascal, in which case 4 Mana for a 2/2 and 5/5 will be an incredible tempo play. Sadly, no competitively viable card ever bet on the opponent not having 2 damage to spare. 

There are ways to abuse this card. Possible combos exist with bounce effects or cards like Treachery. That said, we've already seen similar cards with poor bodies and strong Battlecries in Big-Time Racketeer and Bomb Squad; decks that are built around abusing said Battlecries are not commonly played.

There is some nuance to this card, in that your 5/5 is summoned before your opponent's and therefore can attack first. That can be an advantage. Suppose you run Rascal in an Aggro deck. First, summon Rascal, giving you a 5/5. Next turn, opponent kills the Rascal and nabs a hefty 5/5 of his own. On your next turn, you attack face with your original 5/5, dealing 5 damage. Finally, your opponent trades and kills your 5/5. A realistic scenario, in which Rascal reads, "4 mana: Summon a 2/2 and deal 5 damage to the enemy hero." Not overwhelming, but fair. 

Okay, I just got done skimming the 5 pages of comments here and the people that are comparing this to Eaglehorn Bow are morons. Comparing it because they're both 3 mana 3/2 weapons? That's just dumb. Rogues have always had access to a 3 mana 3/2 weapon since vanilla. It's Called Hero Power + Deadly Poison. Voila, a 3 mana 3/2 weapon with a single card. If having access to a 3 mana 3/2 weapon is all rogues needed, we'd be seeing Deadly Poison everywhere.

The real question is whether that first turn immunity is what makes this weapon viable, not the fact that it's a 3 mana 3/2 which rogues have always had. And in my eyes, not really. Playing on curve, it will save you about 3 health on average I'd imagine. And while that's not bad, it's not that good either. Playing it later so you can smack deadlier minions with it seems more beneficial but at that point, you may be better off simply playing better removal cards in general, which rogues have in abundance.

In arena, this card is going to be great as weapons generally are. In constructed, I don't see this card being played. I'd rank it higher than bad but lower than playable. If there was an 'Arena Viable' vote, I'd put it there. Since there isn't, I'm voting bad solely based on constructed play.