Muktol

Reduce the number of "Mentor of the Meek" to 3 or maybe even 2, you'll have to experiment with the number. You don't want to have him twice in your hand, because he is strong in mid and lategames.
I would remove also "Doomed Traveler" and "Fiend Hunter" for "Student of Warfare". Furthermore change from "Pazifism" to "Call to Serve"
If you want a powerfull removal, take a look at "Path to Exile"

A good Idea to get your creatures on the field could be the "Aether Vial"

As Sideboard choices in my Human Deck I use:
Lightning Greaves (Against point removal)
Ghostly Prison (Againat everything that hast more mass than my deck, e.g. Tokens)
Leyline of Sanctity (Against burn, mill, discard decks)
Proclamation of Rebirth (Against point and mass removal)

I would remove "Nemesis of Reason" for "Jace, Memory Adept". Jace has the advantage of not having to attack your enemy to mill. Furthermore I would put "Archive Trap" into the sideboard. You don't have anything that will force your enemy to search his library. If you're up against e.g. a green ramp deck deck, it's OK, but if your enemy won't have to search his library, it's a dead card.
Take a look at "Jace's Phantasm", "Wight of Precinct Six" or "Dimir Guildmage" for example. There is a nice (but late) combo you can make with Jace and the Guildmage.
"Millstone" and "Nephalia Drownyard" could bring more constant but mana intensive mill, "Dream Twist" would be another cheap millspell.

It looks a little bit chaotic.
Some unblockable creatures, some with undying, some without anything, combined with control-elements and buffs. You should first decide for one tactic, and then try to stay with it.
If you want to say with the unblockable's change the control for some more and efficient buffs like "Rancor" or "Vines of Vastwood". You want to be faster than your enemy, because if he sees that most of your creatures are simply bypassing his defenses he will bring out spot removal or try to be faster than you are.
If you want to stay with the control elements, its vice versa...remove the creatures that don't support your plan for something that helps you to keep your enemy where you want him.

I can only speak of my enemy's at the local game store. There I would encounter one or two vampire decks every time I played in a modern tournament.
A card you can also look at would be "Captain of the Watch". He doesn't exactly fit into your wheenie deck, but will push all your soldiers and come with three little friends

First I would Change from "Kazandu Blademaster" to "Elite Inquisitor". You don't have enough Allys to make him really work well.
Think of decreasing the numbers of "Mentor of the Meek" and "Thalia, Guardian of Thraben" from 4 to 3. You really don't want two of them in your Hand and also not on the board.
With the places won from this, you could increase the number of "Aether Vial" to 3, so you have a Chance of really drawing it, when you need it.
Interesting for all white decks who can't get some trample enchantments or equipment is "Brave the Elements". Your enemy won't be able to block your creatures this turn, you can avoid point removal spells and some mass removal like "Deals X damage to all creatures"

Pherhaps this can help you a little bit
http://www.mtgvault.com/muktol/decks/ug-aggro-simic/

I used "Tormented Soul" earlier, and removed it here for a test with "Nightshade Stinger" and "Spellstutter Sprite". I moved the blue faery allready in the sideboard, and most certain the stinger will also be put there.
The only thing I want to try now is play the first game with flying enablers and switch to unblockable creatures for the second game. So that the boarding my enemy does could/should be useless. Just still loocking for a good, cheap (cc1-cc2) blue unblockable creature ;)

I don't meant to question his deck building capabilitys or his ideas, I hope nobody thought that. The deck will work, no question. :)
The only thing i wantet to say is, that in a normal burn deck you look more to diminish your enemy's life rather than kill his creatures, or guard your own life.

Yeah, but you normally don't want to risk a lord in an offensive action. Also it will take a while to built up your zombie lord army and in the meantime you are pretty helpless.

The both "Mentor of the Meek" and "Thalia, Guardian of Thraben" can be used in standard decks.
"Mentor of the Meek" would give you carddraw in games that take a little bit longer. I use it my white wheeny deck it in combination with "Thraben Doomsayer" (also standard legal). But don't use more than 3 in a deck, because you don't want to have 2 of them in your hand.
You only use 11 non-creature spells and none of them with to hight mana costs, so Thalia would be an excellent choice. Normally it will hinder your enemys play more than it will will yours.

Thanks for the idea. It looks nice, but i think this belongs more in a U/R deck :)
The problem is, that you would need good tutors, to get the parts of the combo into your hand. And to rely to have the 3 cards on your hand in a 60 card deck is no really good choice in my opinion.

My personal version of burn would be http://www.mtgvault.com/muktol/decks/r-burn/

The question is, if you want to get your 160 decks working or just posted ;)
I personally see a 3/1 with trample, which has to be sacrificed on end of turn not so much as creature but more as a sorcery which removes (potentially) 3 more valuable health points from my enemy.

I would cut some of the lords for some more attacking zombies.

Remove "Guttersnipe" and perhaps "Mudbutton Torchrunner". Guttersnipe comes to late and is to costly to play and in a burn deck you don't want to play utility creatures. If you want to play creatures think of "Spark Elemental", "Hellspark Elemental" and "Vexing Devil".
I also would change "Incinerate" for "Magma Jet", which enables you to see the next 2 cards you would draw. Useful if these would be 2 mountains when you don't need it anymore.
If you want more cheap burn spells, take a look at: "Forked Bolt", "Shard Volley" "Seal of Fire", and "Lava Spike"

I would raise the number of "Dread Slaver" to 3 and remove "Gilded Lotus" and "Grimoire of the Dead" instead. The free places could be filled up with "Diabolic Tutor" to get your key cards when you need it.
I hope you have seen the anti-synergy between "Mikaeus, the Unhallowed" and "Grave Betrayal". Creatures brought back with the Betrayal won't be able to use the Undying the get from Mikaeus

Your mana curve is not so good. I would try to think about 1 or 2 finishing creatures you like and you know that work and remove the rest for something that helps you stay alive. If you don't want to do that, you could take a look at the 'Urza' Lands ("Urza's Power Plant", "Urza's Tower" and "Urza's Mine") and on "Etherium Sculptor"

Do you really need "Extraplanar Lens"? Your mana curve is pretty low.
You should cut "Guttersnipe", at the moment you only have 5 Instants/Sorcerys in your deck.
Also you could take a look at "Goblin Wardriver", "Spikeshot Elder" (comes earlier than "Lightning Crafter", and can be equally deadly. The Elder can also aim directly at your enemy) and "Quest for the Goblin Lord". If you want some more spells think about adding "Goblin Grenade"
I don't know if you are having trouble with carddraw, but I fixed this with "Infiltration Lens" in my deck. Nothing is more funny than watching your enemy thinking about "blocking or not blocking" your Warren Instigator equipped with the lens ;)

I tried such a deck myself, but only managed to get it running in slow fun duels.
You could cut back to 2-3/Splicer, e.g. I wouldn't play more than 2 or maybe 3 "Maul Splicer". Sure thing they are nice, they are heavy, and without ramp they won't see the battle before turn 7+, that's if would draw and play a land each turn. Try to see the splicers as utility creatures here.
Try "Adaptive Automaton" instead of "Master Splicer", it gives you a little bit more flexibility (e.g. your Splicers with 2/2 instead of 1/1 won't die on every 1 mana "Tragic Slip")
Make use of "Cloudshift", it enables you to save your creature and, if a splicer was targeted, will additionally bring in some more golems.
You could also use "Razor Golem" or "Tangle Golem"
I also experimented with the "Precursor Golem" but this guy is really dangerous...for your enemy and you.

Is the deck supposed to stay standard-legal?
If not, you could try "Mentor of the Meek" instead of "Flinthoof Boar" and remove "Avacyn's Pilgrim", because your mana curve is pretty low. As replacement you could try "Student of Warfare" or "Thalia, Guardian of Thraben" in white, "Hamlet Captain" in green.