zombie blue/black

yea sorry still new to making decks

I would remove the Dissipate and get another counterspell that costs 1 less blue mana. Doing this would allow you to get more swamps instead of islands, which would increase your chance on drawing better lands in the beginning (for example, you have a lot of black cards right now and about 50% chance to get an island or a swamp. So you could end up with more islands than you'd need all game. At the same time though, you wouldn't want to end up with not having enough islands for dissipate if you happen to end up with it at the start. So the easiest solution is to switch it out, since it's just a single kind of card and making sure you can play the rest is more important.)
up to you though.

thanks, i understand that because it happens a lot. I will look for some more counters

do you think Psychic Strike ( http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=366296 ) would work ?
or maybe a dimir charm

the psychic strike would work, you can mill the enemies for 2 cards aswell, so something might drop to their graveyard that the Grimoire could fetch to play once you've gotten to the point of activating it.
Also, a thing I forgot to mention, the rooftop storms might not work that well in this deck. The reasons being that at the point you can cast it, you usually don't have any more cards left in hand to cast. You will also have enough mana to always be able to cast anything that you might draw
If I were you, I would remove the rooftop storms to get more of the kinds of cards you already have in your deck, like increasing the number of Blood Scriviners for example. Or maybe getting some ghoulraiser, up to you.

P.s. The Dimir Charm would work very well if you usually go up against people who uses sorceries, low power creatures (like mages, they usually do a really good effect and never attacks/blocks) alternatively, it can always be used to get more creatures into their graveyard or just make them draw a bad card next turn. If they're not getting any lands you could just remove any lands that they would have drawn on their next turn, or if they have too many lands you just remove the things that they could have casted :)

Thanks so much , but i do want roof top storm in because if i have my havengul lich i can pay 1 for a zombie in my grave. Any zombie , so late game you murdered or sweeped my zombies , can just have havengul lich and pay 1 for each zombie and throw them down next turn?
also ill side board dimir charm

Point taken, though to make the rooftop storm even better, you could add this:
http://www.mtgvault.com/card/harvester-of-souls/AVR/
yes, whenever something dies, you can chose to draw a card. Attack with all your zombies in play (possibly get some back from the graveyard with the lich as you mentioned) and if a zombie dies, you bring it back + you get to draw a card that may very well be played for free!
On top of that, it is a big creature that kills anything that it deals damage to no matter what. Not a zombie, no, but powerful in this deck. If they do kill him, you still have ways to get him back ;)

Also, as a sidenote, learning how to build decks takes a lot more than doing anything a guys tells you to do, so if somebody tells you "take that out of the deck" don't do it immediately, it's way more important for newer players to experiment and try out the decks they build. After all, if you no longer like a specific card in a deck you have, you can just take it out and try out a new one, right?
Just noting this here, doesn't have anything to do with anything I've said earlier, just hit me now that you're new to deckbuilding, so just giving my usual advice for beginners :P

i like the way you think, also i`m going to try and run this in standard with people that have been playing for a long time and can play circles around me (i haven`t been playing seriously for some time) i will look into getting that demon and i want your opinion, do you think this will survive a Friday night magic , with people that have pro built decks?

That soley depends on the people you're playing with. If it's your above-average decks, I would say you could win a couple of games, though don't expect too many. You do have a limit in the cards you can use drawing cards from boosters, maybe not being able to afford those extremely good cards, don't know much about you, really). Overall, I think the deck looks pretty decent. Some cards might be a bit hard to get to (like army of the damned, that takes a lot of time to build up to).

Short answer: yes, you'd win some games but might not win more than 50% given that the players you play with do not have tournament decks and only a bit above average decks. All decks can win if played correctly, this one can.

Your deck's not bad, just saying that I'm just worried about how good the other people's decks might be

thanks ill take it XD , but the decks i usually build do great against my average friends decks and i dont go through the trouble of buying a lot of cards to do it .
I`m a decent deck builder and can throw a decent deck together pretty quick but i think this is one of the decks i have spent the most time on .( i have been piecing it together and upgrading it for the past 4-5 months) So i value input , thanks dude

No problem, and if this deck does good against the friends you're playing with, I'm sure it'll survive a FNM :)

hey i just realized the combo in this deck, if i had diregraf captain , grimgrin ,gravecrawler , and rooftop.
this combo would allow me to use grimgrin as a sac engine , sac gravecrawler infinitely (due to rooftop storm) so my opponent losses infinite life, because diregraf captain is out , whos abillity is whenever a zombie dies target opponent losses one life.

i have been looking up the ruling to this all morning

Huh, never realised that. Neat little combo, if you're almost losing and almost have all those cards, you could always try and go for that combo.

it's a one drop zombie that i can scavenge, but i see how he doesn't really fit

no im saying you only have one... :$

and if you are playing with like reanimation why are you having exiling in there?

i like really like that card , but i removed it. im new to building decks for standard and i feel this deck is built pretty well.

and i do wish i had more

you can have the slitherhead its not a bad card at all

just i suggest like 3-4 if its going to be one of your one drops

If i can get some more out of boosters, i will add him in.

What i might do is make it 65 cards, take out dissipate for an other counter then add in 2 more diregraf ghouls and 1 more gravecrawler so i will have 3 more 1 drops.
Would that be a solid build?

i think ill replace dissipate with Psychic Strike
or maybe a dimir charm

I think you have plenty enough one drops, it's just that he found it kinda odd that you only had 1 slitherhead. Besides, you have enough cards to play early on, so it shouldn't be a problem.

thank you :)