Friendly vampires + hunters + other figures
I know we can. We've done it before and since it's impossible for him to become Strigoi again, the seal must have brought him from before.
We need to find him before he hurts someone and we need to find a way to restrain him so Lissa can restore him again. She has to get close to him to do it and I'm not letting that happen unless I know he can't hurt her.