It's fine. Not much more to say, really: it has okay stats for its cost and the effect can really ruin someone's day. However, the card is kind if boring and often wont make much of a difference. So...yeah. It's fine.
So you'd put this in your deck specifically for the cases you're behind? That seems sketchy, not gonna lie: consider that Quest Shaman is a board-dependent deck, so if you opponent manages to gain control of the board you are almost done. I think it's safe to say that you can't afford using niche cards for what-if scenarios without considerably weakening yourself. If you want to Hero Power + Nithogg then it would mean that you have at least 5 empty slots on your side of the table, which is a good indicator that you're not gonna win that match soon (or ever). Moreover, I think in that case you'd want to regain control of the board, not going for a value that may (and then you'd be in a good spot) or may not come (and then you'd been doomed since you wasted an entire turn without setting a valid threat).
If you just want to comeback, a board full of 0/3 tokens that do nothing if they die is not what you're looking for at all: in that case Heart of Vir'naal + Explodinator would arguably be better, since you'd deal 8 damage in the meantime. But since this combo has never seen play because it's clearly bad, I wonder how this new one will be any different. Ok, these eggs die by themselves, but since they don't have a deathrattle then your opponent will be a lot more incentivized to use Hellfire, Mass Dispel, Plague of Death or Earthquake without having a drawback. and it would be a positive mana trade most of the times.
Without more class healing I'm unsure how well this card will turn out. Doesnt matter if you have a 4/12 and six 6/6s if you're within range of lethal. Still, it's a soft taunt and a major threat if left alone. I like it.
Not to shabby but it's slow, like others have mentioned this is mostly to buy you time versus aggro decks.
Versus a control deck it can be more useful tho, i have experienced plenty of matches where control decks do very little a couple of turns in a row especially in the early to mid game.
So if you are able to drop this on curve and the control deck might not have an answer in board presence it gives you a really strong turn 7.
And might make them feel the need to use a boardclear.
Overload keeps things in check, 'cause otherwise this would be the best card in the game. Doubling the Battlecry with Corrupt the Waters is the dream, but your Mana Crystals will be offline because of the Overload. Realistically it's a turn-9 or turn-10 play, not turn-7. Blazecaller was easier to work around.
Still a great card, just maybe not as busted as some claim.
Every single one of these "transform while in hand" cards has been bad.
Shifter Zerus, Chameleos, Molten Blade, Shifting Scroll and none of them were ever any good. Could be a fun card, but the sheer amount of variance in this means it likely will not see any competitive play.
One advantage that Bandersmosh may have over the aforementioned is its fixed cost, which assures its playability from turn 5 onwards. Also, depending on the legendary it copies, its 5-mana cost may even be considered a discount. That may not make it competitive but perhaps gives it one more star over the others?
New Mage Spell - Arcane Breath
The breath is a good cheap spell for either the new legendary or mana cyclone shinanegans.
New Mage Minion - Dragoncaster
Dragoncaster is going to be fun in a big spell mage. If nothing else you can drop a puzzle box on turn 6, or relieve pocket galaxy's glory days.
Two Mage Cards - Dragoncaster & Arcane Breath
Dragoncaster is going to be fun in a big spell mage. The breath is a good cheap spell for either the new legendary or mana cyclone shinanegans.
New Shaman Minion - Nithogg
Very underwhelming. The eggs have to live to get value, and it looks like the hatched drakes can't go face when they hatch.
Shaman Legendary Card Reveal - Nithogg
Very underwhelming. The eggs have to live to get value, and it looks like the hatched drakes can't go face when they hatch.
New Shaman Minion - Nithogg
Quest Shaman REALLY getting insufferable now! Turn 8 Eggpocalypse.
Assuming those eggs don't have Deathrattle maybe it's manageable.
New Shaman Minion - Bandersmosh
Who knows? It could even be a Bandersmosh!
5/5 Millhouse please!
Here's some art, make a card! [Legacy Game]
Dog is man's best friend. Except if said man is a Mage.
Next: A Breath spell. It must have an extra effect if you're holding a Dragon.
New Neutral Minion - Bad Luck Albatross
It's fine. Not much more to say, really: it has okay stats for its cost and the effect can really ruin someone's day. However, the card is kind if boring and often wont make much of a difference. So...yeah. It's fine.
New Neutral Minion - Bad Luck Albatross
The One Highlander's career ruined by an seabird.
New Warlock Minion - Zzeraku the Warped
10-mana 10/18 combo. Warlock is already insane with the other Portal synergy cards.
New Shaman Minion - Cumulo-Maximus
Battlecry Shaman minimum 7-cost, 10 damage to Face. 20 damage total. As if Battlecry wasn't bad enough.
Shaman Legendary Card Reveal - Nithogg
So you'd put this in your deck specifically for the cases you're behind? That seems sketchy, not gonna lie: consider that Quest Shaman is a board-dependent deck, so if you opponent manages to gain control of the board you are almost done. I think it's safe to say that you can't afford using niche cards for what-if scenarios without considerably weakening yourself. If you want to Hero Power + Nithogg then it would mean that you have at least 5 empty slots on your side of the table, which is a good indicator that you're not gonna win that match soon (or ever). Moreover, I think in that case you'd want to regain control of the board, not going for a value that may (and then you'd be in a good spot) or may not come (and then you'd been doomed since you wasted an entire turn without setting a valid threat).
If you just want to comeback, a board full of 0/3 tokens that do nothing if they die is not what you're looking for at all: in that case Heart of Vir'naal + Explodinator would arguably be better, since you'd deal 8 damage in the meantime. But since this combo has never seen play because it's clearly bad, I wonder how this new one will be any different.
Ok, these eggs die by themselves, but since they don't have a deathrattle then your opponent will be a lot more incentivized to use Hellfire, Mass Dispel, Plague of Death or Earthquake without having a drawback. and it would be a positive mana trade most of the times.
New Shaman Minion - Bandersmosh
RNGstone engaged.
There are right now many value generating legendaries in the game but at the end of the day it remains RNG sometimes lucky sometimes not.
New Warlock Minion - Zzeraku the Warped
Without more class healing I'm unsure how well this card will turn out. Doesnt matter if you have a 4/12 and six 6/6s if you're within range of lethal. Still, it's a soft taunt and a major threat if left alone. I like it.
New Warlock Minion - Zzeraku the Warped
With enough sustainability this might give warlock some power turns.
Very slow the turn you play it tho.
New Shaman Minion - Nithogg
Not to shabby but it's slow, like others have mentioned this is mostly to buy you time versus aggro decks.
Versus a control deck it can be more useful tho, i have experienced plenty of matches where control decks do very little a couple of turns in a row especially in the early to mid game.
So if you are able to drop this on curve and the control deck might not have an answer in board presence it gives you a really strong turn 7.
And might make them feel the need to use a boardclear.
New Shaman Minion - Cumulo-Maximus
Overload keeps things in check, 'cause otherwise this would be the best card in the game. Doubling the Battlecry with Corrupt the Waters is the dream, but your Mana Crystals will be offline because of the Overload. Realistically it's a turn-9 or turn-10 play, not turn-7. Blazecaller was easier to work around.
Still a great card, just maybe not as busted as some claim.
New Mage Minion - Dragoncaster
That's seems extremly powerfull: not only you can cheat out an high cost spell, but you also drop a 4/4 body on the board.
That's really an high tempo swing.
New Shaman Minion - Nithogg
Not so terrible, but the eggs not having a deathrattle but only a trigger effect is a great limit to how much it will see play.
New Mage Minion - Dragoncaster
This is already my most hated card from the expansion. This is ridiculously OP.
New Shaman Minion - Bandersmosh
One advantage that Bandersmosh may have over the aforementioned is its fixed cost, which assures its playability from turn 5 onwards. Also, depending on the legendary it copies, its 5-mana cost may even be considered a discount. That may not make it competitive but perhaps gives it one more star over the others?
Murlocaliber
Good version of the current Murloc Shaman Meta. Good Work!
New Shaman Minion - Bandersmosh
Too much RNG - I don't think it will be any useful.
Shaman Legendary Card Reveal - Bandersmosh
Mucklings are a theme for HAgatha apparently.