It can be used to protect a valuable taunt minion(s), while forcing the opponent to attack in to the taunt minion. But unless there's some creative use that someone thinks of, I don't think this will see much play.
Maybe put this in death priest? have the spirit of the dead out for the first turn and then position this so it's alone next to the spirit. When this dies the spirit puts it back in the deck, you can redraw it, and you're playing 3/8's for 1 mana that protect the 1 mana 3/8 generator.