What I disagree on (we are here to debate, aren't we?):
Giving Dark Possession '1' whilst the card is almost going to be a staple (maybe not x2 but x1 is very likely) in the deck we expect to be the most powerful.
Tanglefur Mystic: This card was made for Odd decks. So you can play a turn 2 on turn 4 with your hero power.
Pick Pocket : Obviously the card isn't OP. Basically Echo cards are built like this "Card that would cost 1 less" + Echo.
Here, the card that would cost one less is Hallucination, which has is a discover card. Or it could have been a 1/1 Minion, like Swashburglar (but then it would have been broken with the Quest).
But giving 1 to a nevertheless playable card looks very wrong to me.
Pumpkin Peasant is currently the best Lifesteal neutral minion available. Giving it 1 star is just wrong, especially because there's "Curashmore" now.
Dollmaster Dorian is definitely a good card in the right deck, especially with the "draw X minion" from your deck effects.
Witchwood Imp is anything but a 1. It has Stealth, and giving 2hp to a minion early in the game is very strong. If Zoo is good this card will see plays.