New Neutral Minion - Coilfang Constrictor

Seems terrible. There are only a few edge cases in which you actually care about what your opponent will play on a specific turn. in all other instances it's just a vanilla 5/4.

Okani is good because the effect persists if not dealt with. This is just "okay, I guess I'll play something else then".

I mean sure, against Combo decks you can delay whatever they want to do byy a turn, but even then you just spent 4-mana just to maybe get another shot next turn. It won't save you and it's certainly not worth sacrificing a deckslot for

Could be really broken in Arena though. the ability to just completely ruin your opponent's curve while also scouting their hand is pretty nuts there.

Not really as terrible as it seems, in the right deck. Basically for aggro decks, this allows you not only to scout but also to block a potential answer to your opponent's turn. Imagine murlock playing this card after establishing a board, its just game over. Revenant Rascal has proven before that disruption in aggro decks can be dangerous.

The problem is of course, youre essentially playing this card for disruption and nothing else, so why not just play Blademaster Okani, which does the same thing except it has a better stat build. Outside of aggro, this card is just nearly worthless, but that's not to say that it'll never see play. The fact that its able to stop answers from your opponent must be respected either way.

A tech card at the end. Its viability is completely dependent on the meta. So I wouldn't ignore it

This is a poorly-worded card. I can't tell from the text whether or not I get a copy of the card I pick, and I can't tell who won't be able to play the card next turn: me (assuming I do get a copy) or my opponent.

Quote From Kerrek

This is a poorly-worded card. I can't tell from the text whether or not I get a copy of the card I pick, and I can't tell who won't be able to play the card next turn: me (assuming I do get a copy) or my opponent.

You pick a card in their hand and they cannot play it next turn. It’s not even a discover effect, so you do not get the card. Hope this clears it up for you.

Seems like a good disrtuption card for aggresive decks. It's kinda like a mini-Loatheb, as it can block the other player from playing removal. Blademaster Okani might also fulfill the same thing, but Coilfang Constrictor is not a legendary, so you can run 2 copies AND additionally Coilfang Constrictor has better offensive cards, which aggresive decks like a lot more. 

I think this card has a lot of potential is aggresive decks, but slower/control decks will prefer to use Blademaster Okani. Also i'm not sure if a 4 mana 5/4 is fast enough these days, so that's also a risk for this card. Still if it's good enough to make the cut, it will be a very strong and solid card.