Shadow Alley Denizen will only make Pack Rat have intimidate for one turn, where it has summoning sickness.Mortus Strider has an ability you might find useful for this deck too

Perhaps Lightning Greaves to give Pack Rat haste and then you can attack immediately...

And unless you splash white, why have Unburial Rites ? If you can't flash it back then it's like having half of a card. Also, If you do splash white, I suggest Cloudshift instead of Lightning Greaves (or both) to blink Pack Rat next turn.

I was under the impression that Shadow Alley Denizen will let me give another creature intimidate when a black creature come in. "Target creature gains intimidate" not "That creature gains intimidate". So I bring in a Drainpipe Vermin and give Pack Rat intimidate.

And I just had Unburial Rites because it returns straight to battlefield, but for 5 mana is kind of useless when most creatures are one drops. Probably gonna replace them with Disentomb .

Also, keeping it standard and what do you mean by blink Unrulydemise?

You right as the wording is target creature so it does not have to be the one entering. (For intimidate)

Why Diabolic Revelation ? what about Diabolic Tutor ? it is better, and allows you to play Ogre Slumlord on its normal turn.

Kazazz I mean that you can exile it and bring it back in. As such you could simply put intimidate on it right then with Shadow Alley Denizen except I think it would still have summoning sickness so nevermind. When you explained it and upon further investigation of the card I realized that is unnecessary.

Diabolic Tutor isn't standard is it?

Unburial Rites Is heavily outclassed by Disentomb in this deck, like Unruly Demise said. The only situation when it isn't is when you've got Ogre Slumlord dead and want to bring it back, and even then it only outclasses the disentomb option by one mana.

Your drops are both small and plentiful, and I see you topdecking in the large majority of your games, I think Sign in Blood would help you out. Hell, if you want to draw even more, Altar's Reap is good, if not better than sign in blood. I see your mana pool and creature pool being plentiful a lot, so this will help you get that Ogre Slumlord you want so much.

How the hell did I miss Blood Artist ! Put this in ASAP!

Also I didn't explain that Unburial Rites is stupidly mana innefficient when you aren't splashing white.

neXianXavia, thank you for the ideas, I put some in and tried it out and am liking what I have seen!

+2 Mikaeus, the Unhallowed ?

Gives all rats undying so you can have a dream field of +1/+1 rat tokens with deathtouch that come back with a vengeance due undying

I have a sort of similar rat deck here: Why'd It Have To Be Rats?

I kind of like the idea of Mikaeus, the Unhallowed , might have to look into him

I like your idea of Shadow Alley Denizen , I may have to think of adding her to my rat deck Rats Man! - Standard. Let me know what you think.

Have you updated this to Standard now that many of the cards are no longer legal?