If you are playing control this card seams like an upgrade from shadow form (especially considering no soul priest and shamans totems scale crappy late game). Synergizes great with other weapons too, too bad the hero power improvement card justicar wouldn't effect this. Crusher shaman has been begging for a card like this to remove board swarm synergy such as flame tongue not being in the deck, if the totem synergy cards also end up being bad (outside of totem golem) then this will be the savior of shaman hero power.
This is all assuming of course shaman doesn't just die flat out. Reminds me of ragnaros in the rag vs nef brawl in a way, try not to get owned by face decks (nef) while you turn your bad hero power into a good one. Sulfaras 0.5 here
I'm really disappointed in this. It sounds good at first, but it's a 4-mana weapon with 4 durability. Normally, you won't be able to get the new hero power it provides until turn 7 at the earliest... Then again, the deathrattle does activate earlier if you equip another weapon... hmm... =/
This card is actially something that shaman rly need. They lack 4 drops so you have this weapon. The hero power change is something to 2dmg let shamans finally go controll and beat aggro decks and controll decks at the same time.