Here's some quick feedback from me.
Power Word: Dream: "Silence a minion and give it Can't Attack. Add Ysera's Dream to your opponent's hand." That might clear up what "Dream" is.
Cursed Wood Totem: Really weak. Even if you copy a powerful Totem, it ends up as a 0/5, as useless statline. Am I missing some combo potential here? Also, a typo.
Feral Shapeshifter: Hmmmm... I think it's ok, but a little weak. It's either a worse Devastate, or a 3/1 vanilla minion, which is a pretty bad statline.
I like Delilah's power a lot.
Rottenbark, also good.
Haunted Ancient: Again, maybe "Ysera's Nightmare". Also this is really scary... That's 10 damage in hand.
Ursoc's power, also good.
Pincer Strike: Typo in card name. Hmmmmm... really hard to evaluate this card...
Panther of the Grove: Another very hard to evaluate card. I think, ultimately, it is too high-rolly and polarizing to see widespread play. It's nuts on turn 4 or even 5, but beyond that it is completely useless.
Resourceful Murloc: Very powerful card. Careful with this, Murloc Shaman was strong for a while, this might make it too strong. Also, Murloc as a tribe is capitalized.
Hope to see your Boss powers soon.