This deck was built on MTGO for the 4-player Commander format. I tried to make something that I could build out of cards I didn't have to spend a fortune on acquiring (either because they were cheap or because I already had them) and that would still be effective without being "unfun" or "unfair". I'd appreciate any comments, ideas, or suggestions from more experienced EDH/Commander players.

Commander: Stonebrow, Krosan Hero

Lands:

9 Forest
1 Oran-Rief, the Vastwood
1 Okina, Temple to the Grandfathers
1 Mosswort Bridge

6 Mountain
1 Shinka, the Bloodsoaked Keep
1 Spinerock Knoll

1 Mossfire Valley
1 Fire-Lit Thicket
1 Rootbound Crag
1 Highland Weald
1 Stomping Ground
1 Shivan Oasis
1 Jungle Shrine
1 Kazandu Refuge

1 Simic Growth Chamber
1 Selesnya Sanctuary
1 Golgari Rot Farm
1 Boros Garrison
1 Rakdos Carnarium
1 Izzet Boilerworks
1 Gruul Turf

1 Temple of the False God
1 Tectonic Edge
1 Thawing Glaciers
(Total: 38)

Mana Ramping:

1 Everflowing Chalice
1 Kodama's Reach
1 Overgrowth
1 Worn Powerstone
1 Sisay's Ring
1 Ur-Golem's Eye
1 Dawn's Reflection
1 Explosive Vegetation
1 Hunting Wilds
1 Gilded Lotus
1 Rapacious One
1 Mana Reflection
(11 non-creature, 1 creature)

Removal:
(Creature removal)
1 Jiwari, the Earth Aflame
1 Arashi, the Sky Asunder
1 Silklash Spider
1 Flameblast Dragon
1 Mordant Dragon
1 Duplicant
1 Heartseeker
1 Desert Twister
1 All Is Dust
1 Rolling Earthquake
1 Savage Twister
1 Starstorm
(6 creatures, 6 non-creatures)

(Removal that doesn't hit creatures)
1 Shattering Pulse
1 Glissa Sunseeker
1 Wickerbough Elder
1 Acidic Slime
1 Indrik Stomphowler
1 Mold Shambler
1 Woodfall Primus
1 Terastodon
(7 creatures, 1 non-creature)

Offense:

1 Dragonmaster Outcast
1 Scute Mob
1 Kazandu Tuskcaller
1 Taurean Mauler
1 Brawn
1 Boartusk Liege
1 Forgotten Ancient
1 Kavu Titan
1 Kodama of the North Tree
1 Spectral Force
1 Deus of Calamity
1 Rampaging Baloths
1 Multani, Maro-Sorcerer
1 Silvos, Rogue Elemental
1 Vigor
1 Cloudthresher
1 Terra Stomper
1 Pelakka Wurm
1 Spearbreaker Behemoth
1 Kozilek, Butcher of Truth
1 Ulamog, the Infinite Gyre
1 Loxodon Warhammer
(21 creatures, 1 non-creature)

Card Advantage:
1 Eternal Witness
1 Hystrodon
1 Greater Good
1 Genesis
1 Hibernation's End
1 Mind's Eye
1 Lurking Predators

Overall breakdown, by card type:
38 Lands, 39 Creatures, 23 Other

The basic plan is "cast big creatures and attack with them."

Some things I've noticed:

As I played the deck for a while, I kept on adding more creatures that also act as removal. There was always something that I needed to kill, and I was rarely disappointed to draw, say, Indrik Stomphowler.

I also added an awful lot of mana ramping, all of which produces two or more mana. There's not much point in playing, say, Rampant Growth, when it doesn't get me any more mana in the late game than a basic land would. (When you start with 40 life, you usually have a lot of time to ramp.) I'm also running all the on-color Ravnica bounceland to help me get as much mana as possible out of as few cards as possible. Mana Reflection, in particular, has proven to be extremely powerful. I'm starting to suspect that I'm going a little overboard and ought to lower my mana curve, though. I've got 38 lands and 11 non-land cards that only ramp mana, and it's still barely enough.

Primeval Titan would be amazing in this deck, but it's going to be I'm not willing to spend that much money to buy one just for a "casual" deck. Thornling is also tempting, but price is also an issue there, too.

Thran Dynamo goes in as soon as Urza's Destiny gets an online release.

The legendary Eldrazi seem to upset people, but it seems like they have yet to make any kind of decisive difference.

Kazandu Tuskcaller is my two mana Hibernation's End tutor target, but I'm not so happy with it. Dragonmaster Outcast and Scute Mob are both more effective, but there's just not many powerful multiplayer cards available at the two mana slot in G/R.

What are the best Tooth and Nail targets in G/R? I'm not running it at the moment, but nine mana isn't all that hard to get, and two huge creatures for the price of one is always nice.

I ran AEther Flash for a while as a way to keep token generators and such under control, and it seemed good. I don't run many small creatures, so it doesn't bother me that much, and it really messes with a lot of strategies. Should I cut something and put it back in?

Right now, I'm not running much actual card drawing because I almost never run out of things to spend mana on. Greater Good is the exception because, with all the huge creatures I'm running, it's just stupid good; I'll play it even if I already have more creatures in hand than I can cast.

I have yet to draw Lurking Predators during a game, so I have no idea how good or bad it is.

Any other suggestions, ideas, or comments?

What?! last time I checked these lands produce mana other than R/G.

The best Tooth and Nail targets are generally Spearbreaker Behemoth + Fatty X. I do Eternal Witness + Fatty X sometimes. Woodfall Primus + Terastodon is common too, to lock someone down.

Online you can have lands that produce off-color mana. The rules aren't exactly the same as EDH, but they are pretty darn close.

Another two mana creature is Sakura-Tribe Elder. Not that impressive, but it is useful at least.

Other possible Tooth and Nail targets that haven't been listed include Bogardan Hellkite and Thunder Dragon. Thunder Dragon can also help you with weenies and tokens.

Do not take out Lurking Predators. It is very good. Another card draw card that could be helpful is Momentous Fall. You play some serious fat, so it can definitely be useful.

Looks like fun.

Oh, I forgot to mention: Vigor and "X damage to everything" spells (Starstorm, etc.) go very well together. Their creatures die, and yours get bigger. Lots of fun.