This is the Arcanosmith HS Card being released in the adventure One Night in Karazhan. It’s a neutral card, costs 4 mana and has a 3/2 body.
The card reads: Battlecry: Summon a 0/5 minion with Taunt.
Interesting card, I can’t decide if the cost with worth the effect without trying this card in a few different decks. You will need to have something teched in to work with the taunt to make the most of this effect.
Just looks like an average neutral card, will have to wait and see how it works with other cards released.