MTG Salvation

I'd -3 Mine Layer, +3 Creeping Mold for more sorceries, and its also more versatile.
-4 Wild Cantor, +4 Volcanic Hammer for removal and sorceries
-4 Kird Ape, +4 Pillage
-2 Forest, -2 Mountain, +4 Stomping Ground - if you have the dough, they're great mana fixers.

EDIT: on second thought, you might want to keep the cantors in for a 2nd turn LD. Birds of Paradise or a mox are even better, because you don't have to sac 'em.

Thanks for the help, however until I can get some Stomping Grounds I'm gonna go with Karplusan Forest instead cause it's easier to get for now.

I can't wait to test out this deck, it looks like fun and has alot of synergy with Magnivore...

Quote from Card Slinger J »

Twinkee's DeckMagic OnlineOCTGN2ApprenticeBuy These Cards
Lands: 10 Mountain 10 Forest 2 Karplusan Forest Creatures: 4 Magnivore 4 Wild Cantor	Other Spells: 4 Stone Rain 4 Wreak Havoc 4 Molten Rain 4 Rolling Spoil 3 Demolish 4 Winter's Grasp 3 Creeping Mold 4 Pillage

You don't really need all that LD.. seriously. Just pure LD without any sort of board control is just going to kill you.
For your deck I'd do the following:

-4 Rolling Spoil +4 Pyroclasm. Board control good.
-3 Demolish, -3 Creeping Mold. +4 Tinder Wall. aggro stopper+mana accel all in one. +2 Natralize tech is always good.

I'd cut those at least.. because really you don't need 30+ LD spells, you really only need 20 to knock them back by a few turns of mana to seal the game for you. As for the pyroclasm it is because against weenie decks, they will be leaking through a few, but chances are their toughness won't surpase 2 so you can wipe the board of any nuisance.

Twink

I would advise using Creeping Mold as your 4 converted mana cost green LD spell instead of Rolling Spoil, as the Mold can hit a lot more and can take out key nonland permanents if you need it.

I also agree with Twinkee that packing the deck completely full of land destruction may not be best. You could make it a green and red sorcery oriented deck with just a strong LD theme, if that's what you're willing to do, and that might give the deck more room to try some things out.

There are some good sorceries you could give a try: Pyroclasm, Volcanic Hammer, Crack the Earth, Seismic Spike, Inner Fire, Pure // Simple, Hit // Run, Summer Bloom, Recollect, Uproot, Nostalgic Dreams, Fallow Earth, Threaten . . . there are a lot of ways to go other than LD to compliment the deck.
Personally I think Threaten is a nice choice.

Well, tell us what your results are after you test the deck a few times!

Stomp and Howl or Hull Breach (if you can get a hold of any) would be better for this specific deck than Naturalize, since they're sorceries . . .

if your running land demo magnivor isnt as good as terravore but hey you run alot of sorceries so why not run both to go Id do somthing like this since im assuming this is a casual deck. who cares if they get there little weenies out theyl eventualy have to start blocking your guys or youl win the race cuz your guys will just keep growing and growing

I was thinking about splashing in Thresher Beast over Terravore If I can manage to get some...

Some other options for this deck that one of my friends offered was splashing in Raze, Burning Sands, and Dwarven Driller If I manage to find room.