I have an Edgar Markov deck myself and the card I would recommend the most is Reconnaissance

Being able to attack without a problem, removing them from combat if the blocks arent favourable for semi vigilance and the best thing is full on attack --> Damage step --> End of combat step before 2nd main phase --> Remove them from combat with Reconnaissance ( Since they are still an attacking creature in that step ) and damage that has been dealt cannot be undone. Having them ready again to block if needed!

You might wanna look at my deck for more ideas, but this is the biggest one i can give you

Great suggestion. I like that idea. Thanks FireToBurn. I'll add it to the deck and check out what else you have that I might be missing.

You have Urza's Incubator in here but a card that may be a better choice for this deck is Herald's Horn. Many vampires are color intensive and wouldn’t get the full bonus from the incubator, but perhaps more importantly the Horn gives you a form of pseudo-card draw, which is incredibly important for decks like this.

Speaking of card draw, decks like this often lack much of it. You’ve got Phyrexian Arena, Twilight Prophet, and a few others, which is good, but you may want to also consider Necropotence and Champion of Dusk for even more card draw.

A potential problem with your deck is the creature/vampire count. The deck is meant to be a vampire tribal creature based deck and yet you only have 22 creatures / 20 vampires. This seems pretty low for a deck like this, I would add more vampires (there are plenty of good ones to add out there).

As for things to cut to make room, Crystal Chimes seems like it wouldn’t be ideal for this deck. You don’t have enough enchantments for this to really be optimal, and it seems to me that it could be replaced with a vampire.

Also, while Elspeth, Sun's Champion is an incredible planeswalker, she doesn’t really fit here either. Her ult can definitely win you games, but it’s not worth running her for only that ability since odds are she’ll be killed before she gets there. Her other abilities are good as well but they aren’t vampires and you need more of those.

Also, you may want to consider upgrading your single target removal. You’re in Mardu colors so you have access to pretty much the best single target removal in the game in cards like Anguished Unmaking, Utter End, Terminate, Path to Exile, Dreadbore, Chaos Warp, and more. It wouldn’t be best to run all of those, that would be excessive, but they are all better than Slaughter Pact (you’d be surprised how much that non-black clause matters).

You also may want Boros Charm for more boardwipe protection.

These are just some suggestions based on my experience with my own Edgar Markov deck. This is the deck if you’re interested, you may find some ideas for upgrading your own deck: Edgar Markov tokens

Thanks JoeNathan37. Great feedback. I appreciate the explanations and have a few of the cards you mentioned, so will look to swap a few out.

I'd recommend cutting Bone Splinters and replacing it with Tragic Slip.