Bant Pants

By boostkilla (mtgo)

Lands (19)

13  Forest

4  Plains

2  Selesnya Guildgate

Creatures (15)

3  Aura Gnarlid

4  Gladecover Scout

4  Silhana Ledgewalker

4  Slippery Bogle

Enchantments (23)

4  Abundant Growth

3  Ancestral Mask

3  Armadillo Cloak

4  Ethereal Armor

4  Rancor

1  Snake Umbra

4  Utopia Sprawl

Sorceries (3)

3  Travel Preparations

Sideboard

3  Asha's Favor

4  Moment's Peace

4  Relic of Progenitus

4  Standard Bearer

MonoU Control

By Mezzel (mtgo)

Lands (19)

17  Island

2  Quicksand

Creatures (22)

4  Cloud of Faeries

4  Delver of Secrets

4  Ninja of the Deep Hours

3  Phantasmal Bear

4  Spellstutter Sprite

3  Spire Golem

Instants (19)

4  Brainstorm

4  Counterspell

3  Deprive

2  Exclude

2  Gush

4  Snap

Sideboard

3  Annul

4  Coral Net

4  Dispel

4  Hydroblast

MonoG Elves

By MakingSmartPlays (mtgo)

Lands (8)

8  Forest

Creatures (36)

4  Birchlore Rangers

2  Elvish Mystic

4  Fyndhorn Elves

4  Llanowar Elves

4  Lys Alana Huntmaster

4  Nettle Sentinel

2  Priest of Titania

4  Quirion Ranger

4  Timberwatch Elf

4  Wellwisher

Sorceries (8)

4  Distant Melody

4  Land Grant

Enchantments (2)

2  Spidersilk Armor

Artifacts (6)

4  Springleaf Drum

2  Viridian Longbow

Sideboard

1  Flaring Pain

4  Hydroblast

4  Scattershot Archer

2  Spidersilk Armor

4  Thermokarst

Izzet Blitz

By Noah_R (mtgo)

Lands (18)

10  Island

2  Izzet Guildgate

6  Mountain

Creatures (12)

4  Delver of Secrets

4  Kiln Fiend

4  Nivix Cyclops

Instants (8)

3  Apostle's Blessing

1  Dispel

4  Lightning Bolt

Sorceries (22)

4  Artful Dodge

4  Assault Strobe

2  Distortion Strike

4  Gitaxian Probe

4  Ponder

4  Preordain

Sideboard

1  Apostle's Blessing

2  Dispel

3  Electrickery

2  Flame Slash

4  Pyroblast

3  Smash to Smithereens

Goblins

Creatures (26)
4 Goblin Arsonist
4 Goblin Bushwhacker
4 Skirk Prospector
4 Goblin Sledder
4 Mogg War Marshal
2 Sparksmith
4 Goblin Matron

Enchantments (3)
3 Raid Bombardment

Instants (4)
4 Lightning Bolt

Sorceries (7)
4 Krenko's Command
3 Dragon Fodder

Lands (20)
19 Mountain
1 Teetering Peaks

Sideboard (15)
3 Electrostatic Bolt
3 Red Elemental Blast
2 Electrickery
2 Gorilla Shaman
3 Raze
2 Death Spark

RG Land Destruction

Here is a RG Land Destruction deck by MTGO player, "deluxeicoff."
LSV (Luis Scott-Vargas) recently talked about this deck on the official Magic: the Gathering website.

This deck is just trying to get some quick LD going while dropping some big creatures before you recover.
As LSV put it, "This is a very honest deck. All it's trying to do is play an Elf into a Stone Rain into a Blastoderm, with judicious use of burn to clear the way.  Opponents can't cast spells if they don't have lands, after all."

The deck is fun and straightforward, so give it a try.

Lands (20)
4  Evolving Wilds
7  Forest
4  Gruul Guildgate
5  Mountain

Creatures (20)
4  Blastoderm
4  Fyndhorn Elves
4  Llanowar Elves
4  Primal Huntbeast
4  River Boa

Sorceries (16)
2  Firebolt
4  Flame Slash
2  Raze
4  Stone Rain
4  Thermokarst

Instants (4)
4  Lightning Bolt

Sideboard (15)
3  Electrickery
2  Firebolt
4  Gorilla Shaman
4  Pyroblast
2  Raze

Mono-Black Control/Rats

Lands (23)
21 Swamp
2 Barren Moor

Creatures (15)
4 Ravenous Rats
3 Chittering Rats
2 Crypt Rats
4 Phyrexian Rager
4 Liliana's Specter

Instants (14)
2 Disfigure
2 Echoing Decay
4 Geth's Verdict
2 Unmake
4 Tendrils of Corruption

Sorceries (8)
4 Corrupt
4 Sign In Blood

Sideboard (15)
2 Nausea
1 Festercreep
1 Grim Harvest
2 Echoing Decay
3 Duress
2 Cremate
2 Doom Blade
2 Okiba-Gang Shinobi