Zombies

[BlackJester]

Well, I don't like ghoulraiser ether. It is a 2/2 creature for three mana (not a good sign) and it relies on your creatures dying to get value. Think for a moment, what else can you do for three mana that gets more value? (hint: dismember)

With a low, aggressive curve like this, you are likely swinging with your dudes as of turn two/three.  If you are applying pressure and doing a lot of trades, like a zombie deck should, then returning a fallen creature keeps you on the offensive.

The only three drop zombies in currently in Standard are:

{Cemetery Reaper} (already there)
{Contagious Nim} (not using poison)
{Ghoulraiser} (already there)
{Glissa, the Traitor} (off color)
{Phyrexian Crusader} (good card, but again, not using poison)
{Unbreathing Horde} (already there)
{Warpath Ghoul} (same cost, one more power, not other abilities)

If I were playing standard Zombies, I'd go Black Weenie style.  If you hit:
T1: {Swamp}, {Diregraf Ghoul}
T2: {Swamp}, {Walking Corpse}
T3: {Swamp}, {Cemetary Reaper}

By turn three you've got 8 damage on the table! 

Oh, and yes {Dismember} is very high for power-level.  It wouldn't be a bad idea to add some, but don't loose the creatures.

[Prophylaxis]

As you can see the three-drop slot is really covered. Also, what are the chances that a zombie will die when you cast the Ghoulraiser? Just put in the Skinrenders.

[BlackJester]

Sorry, looking at your current list, your creature curve isn't that aggressive anymore.

I think four {Call to the Grave}s is a little high as well.  It's worth having, but you don't want two in your opening hand either.

[Thattallguy]

Keep the {ghoulraiser}s and remove two of the {call to the grave}'s. Four is way too many. I do however agree on keeping the {ghoulraiser} because the whole point of this deck is to have an army of zombies on the battlefield. If you have {endless ranks of the dead} OTB and then you play a {ghoulraiser} you are adding a zombie to your hand and one to the battlefield which in turn will allow your {endless ranks of the dead} to start producing more zombie tokens. It is also useful when your {cemetery reaper gets destroyed by something like a {fireball} which will reduce your zombies power/toughness. {ghoulraiser} IMO is a very useful card. Also check into {nim deathmantle} puhhhhlease. I really truly think it is a very underrated card. I have started using it and I have been so impressed with it. It is a gamechanger.