Fend can really, really mess them up. Any except the truly elite mummys (and liches, if there ever is one), and you'll probably be the favorite with just marshal rally and fend spam.

I've also wondered about a pole spec with the drive legacy. Still need to find them in the right place at the right time (ie, no-recall area), but I could see it working.

Also worth noting, if their focus is specifically on not dying to you, you won't win. I don't think any solo character could permalag them reliably, so they'll always have an option to escape.