Doomed Henry (infinite loop)

Luv the deck - *great* original idea w setting up the Henry module & systematically screwing ur prey.
One little query, what is the basic defence against the ol' stealth bleeder? Is the hope a little intercept to slow them enuff to squeeze ur prey first?
And should there be an Elder impersonation to ensure the Doomed gets thru?
Leopold might be handy, but u probably need at least 1 more way to drop the target vamp's blood. I've always liked Free States Rant, but it may be impossible to rely on with this setup. Probably best to go with the gregory winter/impudulu/ossian/young blood combo.
Oh yeah, Hunger moon is awesome for this type of deck (lifesaver in a foul blood deck).