LSU's "Tiger Attack" drill is as simple as it gets.
One defensive player, three offensive players lined up five yards from each other, and a dummy. Take a look at the video to get a feel for exactly how it's run and what the coaches expect. Basically, the offensive guys block until the whistle, and then can retreat to help provide the dummy additional protection.
This one seems like a great addition to any practice. It's no wonder why LSU's edge rushers have been able to get to the quarterback and were able to wreak so much havoc in the backfield over the past few seasons.