Aggrssive Decks and Combo Decks: How They Blend

Many players often find themselves in an awkward position: Should I play a Combo deck, or should I play an Aggro deck?  For most Casual players, the answer is whichever style they prefer.  For most Competitive players, the answer is whichever deck performs better in the current metagame.  However, some people (like myself) say: "Why choose? I'll play both!"

While at first this seems harder than it sounds, there are two easy routes to take.  The first is to simply build two decks, and use whichever you feel like using at the time.  And while this may work for some people, for others it becomes an issue of wanting the other deck a little too often.  The other option is to play both in one deck.  

Again, this seems like a VERY tall order; Sears Tower tall in fact (no one calls it Willis Tower anyway).  But this too, is actually very easy to accomplish.  

Take your typical Zendikar-Legal, Type 2 Vampires deck for example.  By replacing a few cards (-4 Vampire Lacerator, -4 Vampire Hexmage -- +1 Disfigure, +2 Tendrils of Corruption, +1 Sign in Blood, +2 Sanguine Bond, +2 Blood Tribute), you have an Aggro/Combo deck that'll be instant-killing your opponents, while swinging for victory behind your force of Flying +2/+1 Vampires.