Levitate himself...or others. Don't nerf the telekinesis, because the vampires aren't nerfed anyway. But maybe he works with momentum as well as the raw ability to lift things through telekinesis. So with a running lead, he might well be able to extend a jump or soften a landing. I mean, try thinking as out of the box as you can with it. It's like D&D magic; the grease spell may not seem like much, but it's got it where it counts.