I don't know. I don't really like this card, it feels weak for 6 mana. it's also not great with Kangor's Endless Army because it pops your Divine Shields. Sometimes you'll get it off Omega Assembly or Dr. Boom, Mad Genius and it'll be ok but I don't think you want this in your deck.
That card is combined with Toxic Arrow similar to Equality + Pyromancer / Consecration. More expensive with 8 Mana, but you get a 4/2 Mech on board. Seems like a possible Hunter boardclear. Control/Mech Hunter maybe? (just dreaming)
Seems like an interesting card. Synergizes with a lot of Warrior effects, clears all the pesky divine shields we've been seeing revealed lately, and even has some meme potential with Zerek's Cloning Gallery and deathrattles.
I think it's probably too expensive to see a ton of constructed play, and some of the dream AOEs - poisonous with cards like Adaptation or Toxic Arrow, healing with this and Zilliax (or Nightmare Amalgam and Frost Lich Jaina), etc. - seem too impractical to make this work. It's a useful effect, though, and this may be a tech card, particularly in decks with lots of mechs.