Interesting card. Good early game for combating aggro. Works with lots of other cards, and hero power. Combined with Mayor Noggenfogger and Bring it On! you could do some late game shenanigans to hit face for huge amounts. And getting to late game with control warrior isn't difficult.
For instance, play the Mayor at some point late game. Mayor likely survives, since he's hard to remove due to his effect, especially with other minions on board. If opponent has 1 or 2 minions, next turn play bring it on! twice and this weapon. If the opponent has an empty board, play Leeroy or that 2 mana card that spawns raptors + Bring it On and you have a 50%-33% chance to hit face. This is much easier to pull off than the old setup with fool's bane + heroic strike, and if it doesn't work, you still got 10-20 armor out of the deal. Downside is you discounted your opponent's minions, but you might be able to mitigate that by watching how many cards your opponent has.