I was hunting down some Creepers in my Obsidian Mob Trap when I saw one creeper spazzing in Obsidian and I thought to myself, "Hey,what if they were allergic to Obsidian?" So I decided to post it on PlanetMineCraft and see what you guys think. My friends said that it would be great beacuse you can kill the Creeper and counter their explosion techinques. Leave your thoughts in the comments page below and good luck to all you Steampunk Skinners! :D