Wailor - I very much like this new version - the runes are much smoother, though I'd make the wording consistent across the three of them give/choose. Also i agree with Linkblade, make unholy cost 1.

Moondreamer - super interesting idea but I'm not sure it would be worth it (might depend heavily on what self-freeze cards DK would have)- maybe if it also gave Frozen minions taunt?

FooBars - Quite a complicated effect. I wonder if you can keep the spirit but make it a one-off effect. eg. Battlecry: All other minions attack each other until one of them dies. - rush then to clean up the last remaining minion.

linkblade91 - This is cool. +2 attack might be a bit too much, but I could see +1/+1 fitting well - similar in power then to Rokara. Gets really scary when you already have more than one lifesteal minions on board that can trigger.

AeroJulwin - This should say "if you control a Frozen minion…" theres no different between a/any in hearthstone since its a Boolean state. Otherwise I think Rush would be a simple replacement for stealth since the Deathrattle is hard enough to ensure in the first place. 

linkblade91 - Sapphiron: Something odd about it summoning "dracoliches", maybe consider changing them into "frost whelps"? Also some good art for that out there + bonus for Raid Boss Onyxia synergy.  Lord Tamakeen - Interesting and well designed, but "rest of game" effects might be too 'complex' for an initiate card, the equivalent in other classes is their core set legendaries which are more straight forward.

Demonxz95 - I think Lady Frostheart is the smoothest design, though I think it could be phrased as "Frozen minions take Triple damage", since your the one doing the freezing! Like the idea for the other two, by Frostheart seems like a cool tempo-DK deck idea.

Wailor - The runes strike me as too verbose by trying to be both weapon and minion, I'd suggest making them affect just your weapon like rogue poisons. Maybe then try a "Battlecry: Equip a X/X Runeblade and discover a Rune to cast".

Demonxz95 - I like the concept of caretaker best. Rewarding paladins for going wide with minion types is something we havent seen much of. Some room i think to make it less restrictive - eg. give your minions +1/+1 for each of your minion types. might need number tweaking though.

Wailor - I like Erudite of Duality the most. Though I'm not sure I like an only +Attack buff in priest, even for shadow themes, thats a personal preference though.

linkblade91 - A nice clean design with interesting decisionmaking. I think its good to go.

BasilAnguis - The biggest issue I see here is Quest hunter. Otherwise, its probably too cheap for the effect as a neutral, and a bit weird to have a legendary without a proper name - making it an epic at a higher cost/statline should be fine as the 2nd copy would either do nothing or refresh your hero power.

AeroJulwin - This is a hard one to judge as it would likely be a tech card, but it is rather flexible. Useable in control decks like warrior that currently run 3-5 different types, or in tempo decks that might want to do the same - but sometimes a dead card based on matchup. I think overall the balance is probably ok.

Demonxz95 - I think shaman would be a good fit, obviously for the elemental tag but also they previously had Bog Slosher with a similar idea.

Wailor - I also prefer 'That's Bait' but you're right that it could be a bit confusing. Maybe uncoupling the effect would work? eg. "… Put it on the bottom of your deck and summon a Beast that costs more".

linkblade91 - I like It's the Big One, creates an interesting gameplay decision for the player - "can i afford to dredge for the minion this/next turn?". 

AeroJulwin - This is a bit weird being a Priest weapon with an attack value. Maybe this would be better as a minion? or possibly 0-attack with some trigger to use durability. 

LarryMoments - Emergency Defenses might be too swingy. Can range between nearly useless and 1 mana cloak of shadows. Making it a decent static value but cost a little more might make it a less polarized effect.

linkblade91 - I prefer the "disable it for  3 turns" version, its cleaner wording.

Wailor - a really interesting effect. If they use their Hero Power on their turn, would you still be able to use it? or would it only be available if they hadn't used it?

Demonxz95 - A nice design fitting for DH. I think its already in a good spot to submit.

BloodMefist - A cool idea. I could see this being fine with its statline as is. Low tempo, but still relevant in matchups where the Hero Power is strong. AS for wording "Your opponent's next Hero Power also summons Fiona Lorn for you." could work.

MenacingBagel - Also think the rush version is better, but I think this is still a bit weak. It could probably disable the opponent's Hero Power whenever it attacks instead of having to sacrifice its attack to do so.

Neoguli - cool idea to bring the treasure chest back. I think the balance is good at the moment, though it might be a bit unimpactful. But as a fun-oriented card, it looks excellent!

DestroyerR - I really like this one. I think the downside is large enough (most upgraded Hero Powers will either outright kill this, or be able to ignore it), that it could reasonably have 3 health.

Wailor - Both of these look good and seem balanced. As for the 'flashiness' of the effects - these seem like good archetype support cards. I tend to appreciate that style of design, and I think Thunderbass does it best. It might be worth outlining some synergy cards you had in mind in the description.

Demonxz95 - A cool way to bring the ETC tokens back! I wonder if it could be tied to rush minions / attacks instead to thematically fit with E.T.C., God of Metal. I think this could reasonably be 2 mana as those tokens are not very strong by todays standards.

AeroJulwin - Your new pied piper may be slightly too strong as is, its basically Drek'Thar without a condition. I'd suggest making it hit 1-cost minions/Beasts as hunter has had 1-cost minion synergies in the past and it could more easily target specific beasts (like the Sunscale Raptor)

linkblade91 - I like the "Frenzy as Encore" idea. I think this is a fun and versatile card. It might be worth clarifying if these options are discovered, randomly generated or cast by the minion as the text on the card is a bit unclear.

anchorm4n - I really like this. Seems well balanced and creates an interesting twist on the murloc paladin archetype. Good stuff!

Nirast - An interesting idea. Hard to judge its balance as it would highly depend on the card pool available. I think its probably balanced, compared to Moonlit Guidance, if anything is pushing it over the line it'll be the Twinspell. As Linkblade pointed out, an infinite loop is possible, easily fixed by using the wording "Discover another spell…" 

@anchorm4n - An interesting idea that i quite like. it takes some work to make it an effective option for damage that the opponent can play around by pressuring you to use it as removal. Very hard to judge balance without playtesting but it's possible it should start at 0 damage ie. "Deal 1 damage for each time you've traded this".

@linkblade91 - A tradeable hero is a neat idea. The amount of armor gain might be an issue in some classes (rogue and mage spring to mind since they can draw through their deck fairly easily), otherwise it strikes me as balanced.

@Wailor - Nice, simple, flavourful. not much more to say about that. You're good to go with this one.

@Hordaki - A nice callback that isnt too on the nose in my opinion. My only concern is about what would happen with a certain density of tradeable cards allowing you to play an infinite amount of cards per turn. It's probably fine, but worth considering.

@anchorm4n Lili'idan: A little close to Kayn's design for my liking. Mechnapper: I like, though I question how effective it would be at 4 mana as a tech card. Darktide Reaper: Unusual for a Murloc, a possibly decent control tool, but I'm not sure thats a positive in this case as it results in clear anti-synergy with other murlocs Unsure on this one. 

@AeroJulwin Axolfin: I think this effect (or at least its wording) is probably too confusing to track in game. Overall I think the previous Necromancer is a more workable design.

@Cheese I wont repeat the concerns about Battlegrounds cards, and I'm not an expect BG player myself, so take my balance suggestions with a grain of salt: I think it should probably sit at tier 3/4 with a higher statline. +3/+3 can stack up quickly, and typically murloc builds want to quickly turn their early-game murlocs into large threats anyway - What this means is that you arent usually buying murlocs for their bodies anyway, and this buff is just better in most circumstances. Tier3/4 puts this into a tier where you're more likely to be at a stage of the game where you're looking for this effect in particular.

@Neoguli Nice simple design, balance is great. Flavour is hard to judge without knowing the "set" that would existing around it, could be better on that front if you want it to hit home as a standalone card. 

@Wailor Holyfin Crusader is a bit more interesting - stick with it I think.

@shatterstar1998 I like the Vilefin Spawner with the 1/1's. Though I think you could probably just summon the 1/1 if you want to be more direct. The flavour of it could use some improvement, the link between "Vilefin Spawner" and tradeable that generates murlocs isn't thematically clear.

@Demonxz95 I really like Shoreline Gatherer: meets a good ground between interesting mechanical twist on murlocs and suiting the class/tribe/flavour of Murloc oracles etc. I'd limit the effect to when friendly characters are healed however; same reasoning as to the old Eaglehorn Bow change. And yes, keeping that art should be fine.

@R I like cunning Tidehunter - fits well into what Murlocs do and can serve as a nice board refill tool for those decks. Might be possible to just check for other Murlocs, to give it a bit of an easier time in the inevitable shaman and paladin decks it'll end up it.

@Demonxz95 - This is an interesting idea for a card, but perhaps an unexciting one. If you've seen Mark Rosewater's talk on 20 lessons from MTG (highly recommend watching), he talks a bit about this kind of design being interesting for the designer, but falling flat with players due to the differences in "Intellectual" stimulation vs "Emotional" stimulation. At least personally I don't have that strong emotional response to the card.

@linkblade91 - Go ahead and make it an epic. We have Nofin Can Stop Us that sees little play and is effectively the same +2/+2 effect at a similar cost. I think the cost of sacrificing a minion is larger than you might think. I think for wording you may have to have "Destroy a friendly murloc to give your other minions +2/+2" as current wording would imply that you would get the effect even if you dont have a friendly murloc to destroy. An evocative card for a warlock murloc.

@Hordaki - Not too much to say here, I think this is a clean design. that helps power murloc-hungry decks.

@Wailor - I agree that chumsayer might be too polarizing in its current form. Holyfin looks good, I would run with that idea.

@AeroJulwin - Agreed on the name change, something along the lines of "{Murloc Tribe Name} Necromancer" would work well. I think specifying the type of undead (ghost, skeleton, zombie etc.) instead of saying "undead" would also make sense - see Grim Necromancer who summons specifically skeletons. Balance-wise, 3 mana 1/4 might be too slow for current design trends, you dont often have the minions to throw away for this, possibly throw an extra stat point its way?

@Lundy - I think the Blindlight Broodmother is the right direction - murlocs running away and pulling a bunch more is a time honored tradition in WoW. Personally, I would consider summoning them from your deck rather than randomly, but thats mostly a preference thing. If you're putting this into forged in the Barrens, worth considering reducing the cost slightly and making it a frenzy effect to fit the set mechanics better?

@Wailor

@linkblade91

@Hordaki

@Demonxz95

@BloodMefist

Get ready for the boom - might create a fairly unfun experience – bomb warrior wasn’t exactly the most engaging thing to play against, but at least you could rush them down, and this would make that option a fair bit less reliable if they consistently get 3+ bombs into your deck. Maybe having it scale linearly with the number of bombs might be alright, but might be too weak that way.

Exponential Explosion – Damaging spells that can hit the enemy hero isn’t really something that warrior does right now, so I’d probably limit this to a minion-only target and rework the cost.

I like Maelstron Harbinger, its an interesting design. I don’t think the scaling with spell damage is very strong since its so reliant on keeping spell damage minions on the board. I’d suggest making it a 3/5 at base since the scaling effect is fairly difficult to make use of consistently, and provides a nice power spike when you do.

Pyrotechnician should stick to minions only, as this could easily be a 3 mana 3/2 deal 4-6 damage to the enemy in some matchups. I personally find the C’thun less interesting, but it seems like it would be about as strong as C'Thun, the Shattered.

I think you could word this “…for each duplicate card you’ve played this game” to shorten it slightly. Otherwise I think its probably balanced since it takes some work to get to a high number and you’d probably rather just swing the board on turn 6, which makes the condition a bit tricky to pull off.

Im not sure that Nathanos would count. Shadow illusions is cool and I really like the idea, but way too strong at 4 mana – cheating down Plagued Protodrake etc. that easily is strong, and both classes have a couple ways to easily draw those high-value deathrattles. Remember deathrattle rogue with Necrium Apothecary? This is less setup than that with possibly greater payoff

Reminds me somewhat of Divine Favor. Its probably balanced at 2 mana since its more situational. I’d just name it "Counterintelligence," the “SI:7” doesn’t really add much to describe the card and it will make it look a little nicer as the text size wont be as reduced.

I think this effect might just be too feast or famine – most of the time just sort of bad, and then sometimes broken after a damage based AoE. Maybe to keep the idea/flavour look into something that grants Armor for each damaged minion or damaged character?

@Demonxz95 Earthwarder looks like a solid submission. Not much else to say.

@linkblade91 A nice design. As others have said, putting "total" in there might make it clearer, but i dont think thats necessary, hearthstone tends to cut alot of those corners these days anyway.

@grumpymonk A really cool design - I think its clear how this works, and everyones familiar with mulligans so you're good to go. I dont think its really powercreep either, Valdris Felgorge is the closest card, and for 1 extra mana +3/+2 on a lategame legendary seems fine.

@Wailor A neat idea, and I'm not too concerned about reusing designs from other sites. I would like to this this card with more warlock flavour - I'm not really sure at the moment why it's a warlock card over say a Mage card that has historical "Time magic" effects - An infinite dragonflight art/name could fix that of course. 

@anchorm4n A nice clean design, balance is right - I'd be a little concerned about this in a standard with Libram of Judgment. 

@KANSAS Draining Imp is a bit strong as compared to Flame Imp, fatigue simply doesnt matter to the decks that would want to use it. If it said "instead of drawing" i think it would be the right level. Grimstone is a solid card, though a bit boring imo. Run with the draining imp idea and tinker a bit is my suggestion.

 @BasilAnguis I like the design and think it's got a good balance. The art is a bit too non-hearthstone and shouldnt be too hard to find a hearthstone dragon art that fits, otherwise is ready to submit.