Yea I think that is this a great idea and I even though about crafting it. By using a blaze rod instead of a stick to make obsidian tools
This would not happen on EMC as per we are a vanilla server and will not be adding additional blocks to the game.
Guys, like rob said, this is a VANILLA server. Justin and Jeremy are of the position that they will never add any new items to the game. On a separate note, my brother did write a mod with Obsidian tools. If you would like to try it out, I might be able to convince him to let me send it out to a few people. No guarantees though.
This shouldn't happen because obsidian is stronger than diamond (when you mine it, it takes wayyy longer than mining dia ore w/ dia). The use of blaze rods as sticks may be a good idea as they require some experience to achieve, but still can be mass-produced with a simple blaze spawner trap design and/ or a ton of snow golems lol...If obsidian picks were to be implemented into the game they should be more durable than diamonds, but as fast as gold or something like that xD