Hearthpwn

Pretty good card. It is a 2/2 that draws a 1 mana card. I can see it being played.

I think this is quite good actually.

Keeps hand count high for Handlock while giving you something on the board.  Not bad.  Also a small Shredder nerf.

Yes more zoo support.

Not for hand lock? Card draw minions seem pretty excellent for that. 

Fast handlock? 

It's an ok card. But i wouldn't give up my Haunted Creeper in a zoo deck

This is a great card for slower lock decks to help them keep up with aggro. The discover mechanic is a little better than RNG, so the 1 cards you get to pick will at least be decent.

Mad scientist brother

When you use discover you cannot get other class cards

Quote from Zukuu >>

Quote from Unforgiven_Joker >>

I would prefere loot hoarder, i guranteed good card and cycleing my deck instead of some yolobomb random 1 drop card, 1 drops aren't that good nor can they make any diffrence in the long run. There's not a single 1-drop that you could leave on the board for 15 turns that would do any significant dmg.

It depends which deck you play obviously, but assuming Zoo / Mid-Range you get the following spread (of course everything is debatable): 

 

Good cards (23):  

Minions
Flame Imp
Abusive Sergeant
Zombie Chow
Argent Squire
Voidwalker
Worgen Infiltrator

Spells
Mortal Coil
Power Overwhelming
Blessing of Might
Avenge
Competitive Spirit
Noble Sacrifice
Earth Shock
Execute
Forked Lightning
Hand of Protection
Lightning Bolt
Living Roots
Power Word: Shield
Rockbiter Weapon
Soulfire
Tracking
Cold Blood

Situational good cards (38):

Minions
Bloodsail Corsair
Clockwork Gnome
Elven Archer
Gadgetzan Jouster
Goldshire Footman
Leper Gnome
Lowly Squire
Mana Wyrm
Northshire Cleric
Secretkeeper
Shieldbearer
Stonetusk Boar
Tournament Attendee
Undertaker
Voodoo Doctor
Warbot
Webspinner
Young Priestess

Spells
Light's Justice
Arcane Missiles
Arcane Blast
Arcane Shot
Blessing of Wisdom
Claw
Flash Heal
Holy Smite
Inner Fire
Light of the Naaru
Mind Vision
Mirror Image
Naturalize
Power Word: Glory
Redemption
Repentance
Upgrade!
Whirlwind
Corruption
Conceal

Bad (26):

Minions
Angry Chicken
Blood Imp
Brave Archer
Buccaneer
Dragon Egg
Cogmaster
Dust Devil
Grimscale Oracle
Hungry Crab
Injured Kvaldir
Lightwarden
Murloc Raider
Murloc Tidecaller
Shadowbomber
Southsea Deckhand
Timber Wolf
Twilight Whelp
Young Dragonhawk

Spells
Deadly Poison
Eye for an Eye
Frost Shock
Ice Lance
Deadly Poison
Savagery
Shield Slam
Sinister Strike

This might also be the only time when you can make use of Hungry Grab, if you play against Paladin with a Murloc Knight. THE VALUE!

@Zukuu

2 things:

1 - You can only get class or neutral cards.

2 - You get to choose from 3.

So that makes this card better, since all you need is to have at least 1 good card from the three.

Quote from Zukuu >>

Quote from Garlicnerd >>

you can only get cards from neutral and your own class with discover.

 

 Oh? Does that go for every discover card? Like what happens if you play the "Discover a 3 drop", or "Discover a Beast"? Where does the info come from, I didn't see it anywhere mentioned. fake edit: I checked the main page and it says this: "Spell cards will stay within their respective classes." - so maybe minions are from all classes?