Vampire Socialite Innistrads vampires are highly combat-oriented, and that aggro theme for the type has bled (pun not intended) into other depictions of vampires in Magic
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If a player is fortunate enough to activate Sarkhan's -8 ultimate ability, they are likely guaranteed victory, as Sarkhan allows its controller to search their deck for any number of Dragons, immediately putting them into play!
You also have plenty of targeted spells to make Gargos fight or bite your opponents creatures so you can slip through their shattered defenses for a win
When a card with an alternate win condition hits the battlefield, it has a tendency to warp gameplay around itself
Aid is exactly what this deck wants, Flawless is exactly that, and the Sword (as a Shield!) is a great addition