I'm not sure what Blizzard was thinking when they tossed this card into The Grand Tournament, but I hope it's not a thought process that they experience ever again. The main thing that sets this card apart from Cursed Blade is that you can actually kill yourself with Cursed Blade, whereas playing this card will just prompt your opponent to kill you.
Equipping this weapon on turn 6 means, with a Hero Power, you get a 2/3 weapon for 6 mana. Sounds great, right? But wait, you can turn it into a 3/3 for a total of 8 mana if you Hero Power again on turn 8!
This card requires such an impossible combination of Inspire effects and Hero Power discounts that by the time you figure it out and finally get it to work once, we'll be in the next Hearthstone year. This is one of the worst weapons in the game.