BlackRazz

You know, Past in Flames could be nice for when you use Epic Experiment. That way you have a whole bunch of spells to cast out of your graveyard.
You should check out my Izzet deck if you get a moment http://www.mtgvault.com/blackrazz/decks/izzet-me-or-are-you-dead/

Burst of Strength is a really really fun response card. Bread for the hunt and Miming Slime are also cards i like. I've never used Expirimental one, It's interesting, but I don't play with that style. Oh, and Sleep is a great game winner card. Levitate can be nice, Though it's a hard decision between that and Sapphire drake :P

The Hover Barriers are nice for evolving because they have a strong Defense. I would probably put in Leyline Phantom Instead. The reliquary tower is only really nice with the Prime Speaker Zegana. And i'd prob keep the evolving wilds in case if ur having a bad game and can't get the specific type of mana you need. Put its ultimately ur choice. =D

LOL sweet deck! =D Me want!

Like LIke Like!

Nice Deck! It looks a lot like mine :P
http://www.mtgvault.com/blackrazz/decks/evolve-all-the-creatures/

Another good, and cheap dragon is Slumbering Dragon. R for a 3/3 with flying. can't attack or block unless it has 5 +1/+1 counters. Each time your attacked (or a planeswalker you control) put a +1/+1 counter on it for each attacking creature

Oh, and get lightning bolt instead of searing spear

You seem to have more wither than infect. Try to just have one of those, it makes it hard to deal regular damage and infect damage to someone. I'd also probably sideboard Melira, Sylvok Outcast, because it's only good vs other infect decks. Get the 4/4 with infect that says "at the beginning of your upkeep, put X 1/1 insects with infect onto the battle field under your control where X is the number of poison counters our opponents have" Very helpful.
Another helpful card is BLighted Agent. 1/1 unblockable infect. cost 1U
Djinn of wishes is fun with proliferate.
Then put in your basic Giant Growths and stuff like that
http://www.mtgvault.com/blackrazz/decks/ubg-infect-deck-version-13/
Good deck, but can have some improvement.

Hey Dragonwolf, you seen mine? http://www.mtgvault.com/blackrazz/decks/sacrifice-devour-jund/
Here are a few specifics that can help
Jarad, Golgari Lich Lord (sac a creature, each opponent loses life equal to that creature's power)
Gleancrawler (return all creatures that died at the end of your turn that you control to your hand.)
Symbiotic Wurm (get 7 1/1's to sac)
Thromok the Insatiable (Best Devour card ever)
Death's Presence (When a creature you control dies, put X +1/+1 counters on a creature you control where X is that creature's power)
Oh, and Grave pact (when a creature you control dies, each player sacks a creatures)
Grave Betrayal (when a creature you don't control dies, return it to play under your control with a +1/+1 counter and it's a black zombie in addition to colors and types. Goes well with Death's Presence and Grave Pact).
Act of Treason (gain control of their creature, attack, Sac it at the end of your turn)

yup, i rly want that combo. first turn of having it, 4 creatures. then 8, then 12,16,20 WIN

Toxic Nim is what it's called http://www.mtgvault.com/card/toxic-nim/NPH/

Here are some great goblin cards that could help you.
Bloodmark Mentor
Goblin Chieftain
Goblin King
Goblin Recruiter
Krenko, Mob Boss
Legion Loyalist
Boggart Shinanigains
For more ideas, check out my deck http://www.mtgvault.com/blackrazz/decks/goblin-overload/

How about that 4/1 with infect and "B: regenerate"? It's a big expensive, 4BB, but it is good.

Nice deck!
http://www.mtgvault.com/blackrazz/decks/naya-creature-token/

Whisper silk cloak. Hexproof and unblockable. it's great. oh, it might actually be shroud, not hexproof, but oh well. it's still awesome =D

So, do you actually have this deck? or did u just throw it together? :P
well, anyways, it's kool. If you don't have it made, make it :P
here's mine http://www.mtgvault.com/blackrazz/decks/naya-creature-token/

Jace's erasure is too slow though... i wouldn't

I don't know if your commander is the best... When your commander dies, you may instead put it into the command zone rather than have it go into the graveyard. You may still chose to put it in the graveyard, but then you have to have some way to pull it back out. If you don't have it go into the graveyard, it's ability won't go off.

Gemhide sliver = no mana problems :P
Then you can throw in a door to nothingness XP

I would splash some black in. There are tons of great mill, counter, and counter/mill spells that use black.
here is my mill deck http://www.mtgvault.com/blackrazz/decks/jace-the-maker-of-ragers/