This mod is simple, but deadly. LearnToMod makes it ridiculously easy to manipulate the abilities of items in Minecraft. I mean, check out how simple this code really is:
You can probably already see how to make this mod work for a diamond pickaxe, instead of a sword! Go play with the OP Sword mod on LearnToMod today, or remix this mod to make it your own!
Or, watch Erik defeat an EnderDragon with one hit using his OP Sword: