Hearthpwn

Bolvar Fordragon - Whenever a friendly minion dies while this is in your hand, gain +1 Attack.
Has +1 Attack for each card you've discarded this game.
Difference: Blood-Queen doesn't have to be in your hand to gain attack, it can instead be on the field, in the deck, dead, or created by some RNG effect.
It's also better than Clutchmother Zavas in some sense because, funny enough, Blood-Queen being discarded also boosts her attack and that she's also way better to get out of Cruel Dinomancer than Clutchmother Zavas because she'll have her bonus attack unlike Clutchmother Zavas.
Though this card can be easily removed by something like a Fireball, I would like to think of it as a five mana heal for 6 that could of potentially healed for more or less (Of course, spells like Meteor are an exception).
It also has Lifesteal so buffing her attack by other means could help (Power Overwhelming if it was still in standard).

Downsides:
   Too slow. Doesn't do anything when you play her.
   Opponent can choose to ignore it when you are down to low health. Having one attack per turn probably won't give you enough health to survive (Unless the opponent decides to trade into it).
   She only gains +1 attack per discard, so gaining attack might be difficult and too costly.

Even if discardlock becomes a thing its going to be an expensive deck that wont last against other decks with more value 

The discard lock quest is one of the highest value cards in the game in a long game. They also have Jaraxxus...probably the other highest value late game card lol.

The issue is that, from what I've gathered, discard decks are based more around building up tempo than generating value, the idea behind the discard mechanic is that you pay less for bigger cards but have to sacrifice the value of another card in exchange, one of the reasons quest warlock never took off was because of this, the quest is the highest value card in the game but finds itself in a deck based around throwing value down the drain in exchange for tempo, making it work against the mechanic of the whole deck, similarily Jaraxxus, while an amazing card is built around you reaching the late-game, which early-game decks usually want to avoid, while also never discarding him, granted if he's in your hand on turn 1, you're already set back, regardless of deck archetype.

You said a lot of stuff that would normally make sense. The issue with what you are saying is that discard lock is no longer an aggressive deck. It is a deck that can gain large tempo advantages in the early game and leverage its hero power and cards like Blood-Queen to heal itself back up and get into the late game to play the quest reward and cards like Jaraxxus to close the game out.

Before the Frozen Throne expansion, the deck was about a 50/50 winrate which isn't the greatest, but with cards like this one and 1-2 other decent early game removal/heal cards, this deck will be solid.

Hey Blizz, Print a 1 mana spell - Discover a card in your deck, discard the other two - I dare you

So that's basicly Tracking

yes, exactly - warlock version of tracking.  Not even unfair because warlock doesn't really 'need' draw, but instead a way to make discard less painful (and often suicidal).

Auto include in discard lock, but this alone is not gonna push that deck. The discard mechanic needs more synergies that benefit from being discarded then they have right now for the deck to come near to being viable

It should be noted that this card's effect is still active when played, so if you really don't want to discard it, there's a chance you can play it first

I have to say it,but I HATE and i mean I HATE the discard mechanic,i hate how it's PURE rng, i hate how in a discard deck it's nearly impossible to play any lategame threats like nzoth or jaraxxus,i hate how its impossible to be played in handlock and what i hate the most is how blizzard tries to shove it down our throats and force us to like it,i loved the queen lana'thel bossfight back at wrath and seeing her being turned into a shitty and stupid carrier of a mediocre synergistic mechanic of the worst mechanic in this game makes me angry,if they don't stop shoving this cancerous bullshit down our throats i will have to quit this game.

This card is just wasted potential,most of the time it will just get fireballed and the times that it sticks around,it won't heal you for much...it just sucks...

Maybe blizzard will introduce some interesting discard + ressurrect mechanic.

I mean we haven't seen the whole set yet (given the already worrying number of "bad" cards so far, we can't say anything)

Discard is not pure RNG - if you have two cards in your hand it is 100% determinate which one will get discarded (and discard is free if you are top decking) - when disco-zoo was a thing you would ideally play great early game cards, get your hand to be nice and small, play your best stuff and hope you discarded the worst stuff then tap, or if you had a good hand, tap then discard.  it has an RNG element - but you can control the magnitude of the RNG by keeping a small hand.  I would say much less RNG feeling than evolve-devolve, Rag, Yogg, or top-decking Pirate Warriors.

The problem is that they are not printing enough cards that are only good as discard fodder and trying too hard to keep discard an underpowered mechanic being as everyone knows that the warlock hero power is OP and renolock had such a long and successful reign.  Clutchmother was a cool idea - but it is not even run in some discard decks because it is too clunky and warlock is just not a great aggro class anymore.

I think the problem with discard is already built into the mechanic,control decks are based around lategame threats like medivh and jaraxxus,cards that if discarded would lose you the game forcing discard mechanics to be played only in earlygame decks where you can *select* much more easily the cards that you wanna discard,but even though that's the case,they still keep making control cards that are synergistic with discard,something really stupid,also... i was putting a huge comment together to answer the first part of your comment,it took me way too much time to put together,soooo... i will just add it to the reply like the stupid retard that i am....god damn i gotta ease up on the redbull at night.

Sure,in zoolock discard cards aren't pure rng,but only because in that deck,you just puke your 1 drops into the board till you have basically no cards in hand where you can discard with a higher chance of hitting what you want,but if you somehow were running something like reno(which you actually would btw) and you drew it,it would force you to not discard anymore till you played him or you would have to take your chances at not discarding him and if you ever did so agaisnt a aggro deck,hey...that's one game that would have been won if you got lucky or if you hadn't played discard cards in your deck,and that's just one example,what about the times doomguard didn't hit that silverware in a three card hand,what about the time darkshire librarian hit the awesome tempo play that darkshire councilman would've been.Oh and,in a control warlock deck(the archetype being pushed by blizz through stuff like lana'thel and cruel dinomancer) because of how heavy your cards are,it's rare to not have more than 5 cards in hand so saying that it isnt rng based is not really true,plus,control warlock is forced to run stuff like Lord Jaraxxus that would lose your game if discarded.I just don't like how blizz tries to shove the mechanic down our throats,warlock use to be the most consistent class in the game(because of it's heropower) and seeing the class become dependent on a rng based mechanic such as discard is just disappointing to me

 I said it was a huge reply

I hope the hero card does something related to getting back all cards you have previously discarded. That would make this and other discard oriented cards more viable in Warlock.

Warlock now has a (more complicated to use, and not discard) Bolvar Fordragon 

If Blizzard wants this to work, they should release cards that let you choose which card to discard instead of random. (As seen with the Dark World archetype in YGO)

Quote from RatedDart >>

If Blizzard wants this to work, they should release cards that let you choose which card to discard instead of random. (As seen with the Dark World archetype in YGO)

As if the current top tier decks couldn't against that... And I'm not saying all of the cards should be like that, just release a couple of epics/rares that let you choose with the discard mechanic. 

This card can be good if you dont discard it.... Which you probably will do... A lot..