This is a Mardu Vampire cube, with every card inside either being a vampire, making vampires, or in some way fitting the general theme of 'Ooh, spooky vampires!'

There are admittedly a couple of dumb inclusions in here purely because they're cards I personally love (Like the Vampire Dragon.)

There’s very loose themes of lifegain in WB and Madness/Aggro in BR with Aristocrats sprinkled throughout.