New Blood is a bit annoying to use.

[Jemmay]

It has "replace a creature type with vampire" but once resolved presents a list of all possible creature types. Is there any way it could be programmed to check the creature types of its target?

[N-Cat]

FYI, assuming you're on desktop, you can just start typing the creature type. You don't have to scroll through the whole list.

Unfortunately, from what I can tell, the card doesn't actually work. It replaces the oracle text of the card in the panel, and the activated ability popups, but it doesn't seem to be able to actually functionally change programming of what creature types are affected by the stolen creature. I'll ask on the Discord.