So, any of your Vampires that manage to sneak through your opponent's defenses will be hitting twice as hard
Ziatora, the head of the Riveteers, heard it all from her kin when she first agreed to the archdemon's contract
This looks like a four damage burn spell, but in the absence of an effect like Heroic (which, yes, is on a single Boros uncommon), this is the kind of combat trick that tends to be a one-for-two
Maybe its built to rely on random elements like dice rolls or coin flips, or maybe its funny because your strategy seems a bit counter-intuitive to how youd normally play Magic
Realistically I think this is a really big draw spell tied to a creature, and if you're playing a deck that often dumps their hand he can be a good way to refuel
As the last chapter ability resolves, you may choose to exile all other creatures even if you didn't choose any Doctors