I really think that this Scion of the Ur-Dragon idea can go somewhere -- but I'll go insane if I spend game after game losing with it because I don't have some critical mass of meaningful cards.
When I get frustrated, I'm going to play another deck: Rosheen Meanderer. I won't have any rules about its construction, but it'll be up here for comments and scrutiny.
Rosheen specializes in land destruction, mana rocks, direct damage and hydras. (I guess three hydras doesn't a specialist make, but I like hydras.) This list is about as complete as any EDH list can be, but I'm still looking for a Berserk.
DECKLIST
Rosheen Meanderer
ARTIFACT
Coalition Relic
Darksteel Plate
Firewild Borderpost
Gruul Signet
Mind Stone
Sol Ring
Sword of Fire and Ice
Sword of War and Peace
Tawnos's Coffin
Thran Dynamo
Worn Powerstone
CREATURE
Apocalypse Hydra
Arashi, the Sky Asunder
Detritivore
Hellkite Igniter
Kumano, Master Yamabushi
Magus of the Moon
Oracle of Mul Daya
Primeval Titan
Primordial Hydra
Protean Hydra
Silklash Spider
Steel Hellkite
Verdeloth the Ancient
Vexing Shusher
Yavimaya Elder
ENCHANTMENT
Abundance
Exploration
Greater Good
INSTANT
Ancient Grudge
Beast Within
Chaos Warp
Chord of Calling
Comet Storm
Crop Rotation
Fatal Frenzy
Hunter's Insight
Momentous Fall
Squall Line
Starstorm
Surge of Strength
LAND
Boseiju, Who Shelters All
Command Tower
Dwarven Ruins
Fire-Lit Thicket
8x Forest
Fungal Reaches
Ghost Quarter
Gruul Turf
Havenwood Battleground
Hickory Woodlot
Homeward Path
Kazandu Refuge
Kessig Wolf Run
8x Mountain
Raging Ravine
Rootbound Crag
Sandstone Needle
Skarrg, the Rage Pit
Stomping Ground
Strip Mine
Taiga
Tectonic Edge
Tower of the Magistrate
Wasteland
SORCERY
Banefire
Blasphemous Act
Chain Reaction
Decimate
Disintegrate
Fanning the Flames
Green Sun's Zenith
Hurricane
Molten Disaster
Natural Balance
Nature's Spiral
Nostalgic Dreams
Recoup
Regrowth
Ruination
Savage Twister
Tectonic Break
Thoughts of Ruin
Unwilling Recruit
Wildfire
