Prizrak

Cauldron of Souls will end up killing your hexmages, hex parasites, and bloodghasts. You could replace it with a cumulative upkeep card and eat the age counters: Hex Parasite makes you invincible with Glacial Chasm, for instance, or gives you extra card draw for the entire game with Phyrexian Etchings.

A darksteel birthing pod novablast wurm deck? ...I love it. :D

Nice job finding all the ways to make Leveler not horrible. :P

I'd take out Shared Fate, since a lot of these cards are useful for any deck with black or green.

I'm confused... where's the puzzle box? :o

Apart from that, I love the idea.

Even if Lethal Vapors is on your side of the field, your opponent will skip their turn if they activate it. And sadly, Lethal Vapors still destroys Progenitus. Blightsteel Colossus, on the other hand... >:D

Looks like it could be quite evil if you manage to get some creatures out before the Lethal Vapors. You don't want to draw a ton of creatures once it's in play, though. Consider replacing some of them with indestructible creatures or other card types.

Definitely a cool idea. If you can get it a bit more reliable you should definitely put in some "destroy all lands" effects. =)

Speaking of getting creative with Kuldotha Rebirth, take a look at my "Kuldotha Polymorph" deck. So creative I didn't even use it for aggro. o_O

http://www.mtgvault.com/ViewDeck.aspx?DeckID=178255

I just finished making a UR mass polymorph deck, so I searched for others just to see different takes. This one looks fun. =)

Mine relies on tokens to get out a 3-creature combo. Quite different, but just as ridiculous as every mass polymorph deck should be. ("Kuldotha Polymorph" if you'd like to take a look.)

Thanks for looking at my deck! As for this one, I would put in more equipment / equipment search - it seems with only 3 mystics and 4 pieces of equipment, your equipment-centered creatures won't be at their best a lot of games. And Puresteel Paladin just seems evil with a lot of equipment around >:D

I have a ridiculous unwieldly deck list I put together just for fun a while ago, with a similarly insane sideboard. Spawnswire of Ulamog plus.... Battle of Wits?

http://www.mtgvault.com/ViewDeck.aspx?DeckID=153298

I would include ways to search for nonbasic lands so you can get out your temples and eyes of ugin. Overgrown Battlement + other defenders is also a great way to ramp while defending yourself in the early game.

Hm, you're missing 15 x Benjamin Franklin in the sideboard. >_>

Oddly, I have a (stupid) deck named Seven Years of Bad Luck, but a deck named Hail Your New Frog Overlords that's much more similar to this:

http://www.mtgvault.com/ViewDeck.aspx?DeckID=159036

Hurrah for Kiln Fiends! I have a pauper UR kiln fiend deck if you'd like to take a look:

http://www.mtgvault.com/ViewDeck.aspx?DeckID=153006

It seems like you could get stuck without a kiln fiend too often. Even paired with a defender deck, I'd recommend replacing Twiddle with something like Ponder, and Stream Hopper with Wee Dragonauts.

Looks fun! Reminds me a little of my GW Landfall deck - I sac all my lands, then bring them back with Planar Birth.

http://mtgvault.com/ViewDeck.aspx?DeckID=153141

Raging Goblin is great on turn 1, not so great later in the game. I guess nowadays he's just overshadowed by Goblin Guide and Goblin Bushwhacker.

I'm blind, you already have Vines of Vastwood. ;)

Landfall is fun to play even on a budget, I enjoy playing mine quite a bit. I recommend replacing the panoramas with Evolving Wilds for the same amount of landfall with no mana cost. Emeria Angel and Vines of Vastwood have also worked very well in my deck.

my GW budget landfall deck, with a strange twist:
http://mtgvault.com/ViewDeck.aspx?DeckID=153141

Nice to see different people's take on Kiln Fiend, especially in other colours. I went with blue so I could use Wee Dragonauts and scry effects, but there are advantages to both.

http://mtgvault.com/ViewDeck.aspx?DeckID=153006 if you'd like to compare