Mark-023

This looks pretty fine, but with Innistrad staying another year, I would advice using Dead Weight than Crippling Blight (Blight gives -1, Weight gives -2, at the same mana price), but other than that, is a nice idea!

Good intel on replay, maybe some flicker theme back from AVR could work here? And is sad to hear that Zedruu decks are never under the radar, but I think this build can pull it's stuff, live, and kill the rest, especially because you can win even without the general

This is actually a nice idea, I posted something similar before (you can look here: http://www.mtgvault.com/ViewDeck.aspx?DeckID=263347). If you can use some creatures to force damage (or to remove some pressure), Trepanation Blade could work a lot. And as PoetMaster said, Jace's Phantasm is a perfect add-on to it, being a 5/5 flier for one mana is nuts enough as a backup win con. The Crypt can go to the SB, unless you are facing Frites or Solar Flare a lot in your meta.

Well, as someone said before, welcome to the game.
To be honest, I see a lot of routes this deck could go, but the first question here is: what format are you taking: Standard, Modern, Vintage, or just casual? That is in order to give a more accurate advice in what to take and what to tuck in.
Second, I don't advise using telepathy, is too rubbish for me, unless you ran some amount of discard. Corrputed Conscience is powerful enought to defend its inclusion in 3-4 copies (max amount of nonbasic lands, is 4, just to take that into account). Instead of Endless Scream, try to run Mutagenic Growth (if Standard), or in some case that red decks in your store aren't that popular, Hatred (especially when taking on another infect, as life points will be almost irrelevant). Awesome Presence is not that good, and for that, I would advice Artful Dodge (makes it plain unblockable, doesn't give the opponent a 2 for 1, and has flashback in order to use it a second time). Mixing infect and non-infect creatures normally doesn't give good results (that is from a personal experience I had in a besieged/scars draft), so try to not run them, and make room for more copies of infect creatures, or go an opposite route and use graveyard recursion (like Morbid Plunder or Exhume)
Because you're running blue, try to run some decent card draw, like Ponder or Ancestral Recall (then again, depending on the format), as Steady Progress doesn't make the cut.
Hope that helps, and BTW, that deck is a nice idea!

The best pump spell is Mutagenic Growth, followed by Titanic for doming for 4. Imagine throwing a Titanic and 2 Mutagenics on an unblocked glistener elf, and you see the point. But I didn't wanted to put all eggs on one basket, thinking that there are decks like Tempered Steel that can offer some resistance, so I places Predation for giving trample. I replaced Overrun for Wild Defiance, to maximise the lethality of pump spells with an extra bonus +3/+3.

Is true that Doubling Season could work, but its price is not that acceptable, and in that case, I could run Paralell Lives instead for token production. But the real culprit is that this idea is not running token production, instead relying on creatures and good equipment to deal with the enemy, alongside some proliferation in the form of the Clasps.
I could envision a transformative SB using Lives and tokens, but not on the main deck, as it is designed to blow the opponent as quick as it can (turns 2-4 preferably)

No, as from this day of spoilers, wizards is planning to rotate them out, and It makes sense: those had seen 2 years of play in Standard, probably they will be replaced by the Legendary Creatures cycle. Why?

From an initial look, it is a nice idea, and actually I built something very similar to this deck (that happens to be my FNM deck, although using a 3 color mana base with black). About possible routes, as the comments before say it, use Mulch, for a deck that wants to ramp/mill, is an all-star choice for its price. Other thing worth a hard look is Dawntreader Elk: the abilty to block, trigger morbid and simultaneously ramp is extremely useful for a build like this, and also can make you use a third color, along with Caravan Vigil. BoP is nice, but you need more forms to make black mana, otherwise those Alchemy's will rot in your graveyard. Seeing the amount of creatures, I would suggest you cut the Ghoultree and replace them with Kessig Cagebreakers, that card works wonders for self-milling decks as being a deadly threat in itself.
If you want some ideas, you could look into my deck, which is very similar to yours, but lacking Laboratory Maniac/Splinterfrigh, and using Spider Spawning as another win conditiont: http://www.mtgvault.com/ViewDeck.aspx?DeckID=278506
One last word, when M13 enters, beware Tormod's Crypt, it will be reprinted.

Nice idea, I actually love ninjas, but here I think needs some improvements. Have you considered running Tormented Spirit (unblockable) or cheaper, utility creatures, in order to trigger ninjutsu? Also, being legendary can sometimes be a problem, so you could maybe try running less legendary ninjas for more support. And try to mix the instant removal, in order not to be vulnerable to things like Affinity (Modern) or Tempered Steel. Otherwise, is a very nice deck

Thanks for the compliment. Actually, because I'm not using sac effects, I didn't want to run tokens for it, but it seems like a good option of swarming. Poison I don´t use unless is an all-in strategy, you would be surprised on how difficult it is using a hybrid deck of both damages, so maybe I'll be running the Hatchery only

Damn, I forgot that, thanks for pointing it out!

Thanks for the compliment! I took word and I replaced some cards for Fog, although my original plan was to use high toughness creatures like Blightwidow and the Juggernaut

If I can recall, both get bonuses for auras, the main problem is that the gnarlid could be a boltbait, biut yeah, I will include both and use some totem armor to remedy that, thanks!

Looks solid, nice idea. I would advise using Ulvenwald Tracker instead of Kessig Recluse, in order to kill it as soon as the opponent takes control of it, along with Vorapede (good size, trample plus undying) replacing one Demonlord of Ashmouth. You could also use Altar's Reap to draw cards and trigger undying, and I think using 4 killing waves is a little too much, with 2-3 you should be OK

Thanks a lot!

Nice idea pal, a particularly rare but interesting tribe. The only thing I see is that I think that the rings could work better as SB cards, using banishment stroke instead. While I like dual lands, I understand that some can get very expensive, but is a nice land base there, without a lot of color intensive cards. This could probably put to good use Ponder, for sculpting hands and cantrip, and maybe Divination. Hope this helps!

Thanks for the compliment. I took word of the sideboard cards you mentioned, and instead I placed other auras to complement the creatures, along them, the vow cycle

I know about that, that is why I didn't placed the Knell in first place. White counterspells are a little hard to look (especially when I'm searching in Modern format, I don't want to go back more than that), and the removal suite is quite important. The other problem is that the original decklist could get out of steam really fast, so that defends the inclusion of Griselbrand and Harvester of Souls (also because both are demons, and especially their stats as 7/7 and 5/5 deathtouch)

Never thought about Knell, i could add it here, but what can I remove from it?

I agree that quicksilver amulet is a good addition here, but because of Kaalia, most of the things can get out very early, because of their types (angels, demons and dragons). Other thing that I looked in the original decklist for her is the lack of card draw, which can get the deck out of steam