Some of these cards are just awful, but the only one which I think needs a rework is Winterblade.
It just makes no sense from the design perspective. Why would you ever want to use an artifact, a very expensive one at that too, to stun enemy minions rather than kill them? It doesn’t even have a special kind of mechanic that makes the card work, like making it not lose durability if you stun enemies on your turn without killing them or whatever of that sort. But no, it functions like a normal, overpriced artifact. It goes against the very philosophy of artifacts.
I guess I could also argue how ranged pets go under this same “makes no sense from design perspective” category due to them moving before attacking but I’ll let it slide for now because they obviously want all pets to act the same. Even though that could easily be fixed by slightly altering the pets keyword and behavior to a mechanic where they check are they in range before attacking.
Anyway, list is heavily incomplete and I don’t see on what grounds were these specific cards chosen to be a part of it. As such it really makes the whole thing lose a lot of value. Even though I guess it never had any value in the first place and just served to emphasize some discussion for the sake of it.