Draco Malfoy
Draco went because he was assigned to Snape's patrol upcoming. He didn't want to be there, really, and isn't exactly the most enthusiastic of Death Eaters. He stayed on the edges, sending ridiculously strong stinging hexes, and tealgreen-tinged stupefies. He ended up taking a nasty burn hex to his side from a stray spell, but otherwise made it through fine and still master of his wand. He got healed on field, and went home afterward where he curled up under his duvet and stared at the wall until he slept.