Voted bad, Vinecleaver is just better and i cant see both in the same deck even with Ebon Dragonsmith on it, i believe many people are underestimating the power of Vinecleaver on turn 5 with lots of possible follow up, sure you will need both on hand together but still this is a very strong combo.
a best it gives 28/28 worth of value... Problem is it's incredibly slow. If we wanted a slow weapon that gives a lot of value we've already got Valanyr. Least with Valanyr you don't have to worry about weapon destruction (although this weapon does give you a more immediate affect).
At best on the turn you play it it's 3 damage plus mark of the lotus for 8 mana. That's a pretty bad tempo loss that you are hoping to get back,but since you just took a big loss your board can be a lot more easily contested or cleared, and then this weapon gets a lot worse.