Hearthpwn

But this card can be played in a situation that calls for a certain affect making it more viable and flexible. The cards similar to it aren't played because either they're badly statted or too situational, while I agree the card is lacking the initial stats it needs the adapt flexibility in my opinion can make this card playable. Interesting point though and good reasons to support your claim.

Reckless searcher

2cost 2/2 epic

battlecry: discover a warlock class card, then discard it.

does this seem good?

So, Verdant Longneck is a terrible card. Out of the 10 options, 7 of them make this similar to a card that already exist and have seen no play at all. You want a minion with Poisonous to have high health, and 4 health is not a lot. With divinie shield is better than other minions with divine shield, but they were not really that good to begin with. And sticky minions are good, specially when they have more attack than health, which makes the deathrattle option is probably the best one. Only 2 out of the 10 options to adapt are okay, that means that there is a 53% chance of getting a really bad minion with it.

Adapt may be interesting with brann on wild.