You guys also have to keep in mind that just using this on a creature may prevent it from being targeted all together. If you use this on a creature, and the opponent has a fire bolt, the opponent may just use it on different creatures. On the other hand, there are cards like Rain of Fire that will be used on it, but mostly when targeting other creatures at the same time. The more I think about it, the more it seems like a Bone Wall for creatures. Now that is an interesting idea.
I do agree with the 2
|1
cost though.