What follows is a combo deck I put together for EDH. Lots of fun to play. Has a stupid number of tutor effects, so I can get things going rather well.
I picked Child of Alara as the general because, A: 5 colors, but also because B: its nice to have something quickly on the table that discourages attacking heavily or wrath effects.
Child of Alara requires you to actually place him in your graveyard to trigger, he will not trigger if you choose to RFG him. Given that, I would either work on building around the Child a bit more or abandon him for another 5cc general such as Scion of the Ur-Dragon, who can be supported with little effort, Cromat, who requires no building around or Sliver Queen, who can be pretty good on defense making chump blockers. If you go for the Child route I would recommend more sacrifice outlets to kill him when you want to and reanimation spells to get him back. If nothing else, I would get rid of Oath of Druids for Survival of the Fittest since you have so many creatures that just aren't very exciting to get into play for free.
I picked Child of Alara as the general because, A: 5 colors, but also because B: its nice to have something quickly on the table that discourages attacking heavily or wrath effects.
1 Child of Alara
Creatures:
1 Kikki Jikki, Mirror Breaker
1 Sky Husar
1 Wild Cantor
1 Eternal Witness
1 Academy Rector
1 Blazing Archon
1 Empyreal Arch-Angel
1 Hellkite Overlord
1 Akroma, Angel of Wrath
1 Darksteel Colossus
1 Sphinx of the Steel Wind
1 Sens Triplets
1 Teferi
1 Dosan the falling leaf
1 Projenitus
1 Niv Mizzet, the Firemind
1 Cavern Harpy
1 Parasitic Strix
1 Raven Familiar
Enchantments:
1 Pernicious Deed
1 Defense of the Heart
1 Enduring Renewal
1 Oath of Druids
1 Underworld Dreams
1 Aluren
1 Goblin Bombardment
Artifacts:
1 Memory Jar
1 Nevinyrral’s Disk
1 Oblivion Stone
1 Sol Ring
1 Sensei’s Divining Top
1 Nicol Bolas, Planeswalker
Spells:
1 Brainstorm
1 Ponder
1 Timetwister
1 Time Spiral
1 Wheel of Fortune
1 Windfall
1 Prosperity
1 Gaea’s Blessing
1 Regrowth
1 Reclaim
1 Yawgmoth’s Will
1 Demonic Tutor
1 Vampiric Tutor
1 Imperial Seal
1 Grim Tutor
1 Diabolic Tutor
1 Mystical Tutor
1 Merchant Scroll
1 Enlightened Tutor
1 Worldy Tutor
1 Tooth and Nail
1 Gifts Ungiven
1 Path to Exile
1 Swords to Plowshares
1 Vindicate
1 Maelstrom Pulse
1 Disenchant
1 Naturalize
1 Desert Twister
1 Grapeshot
1 Brainfreeze
1 Underground Sea
1 Tropical Island
1 Volcanic Island
1 Tundra
1 Bayou
1 Taiga
1 Badlands
1 Savannah
1 Scrubland
1 Watery Grave
1 Breeding Pool
1 Gemstone Mines
1 City of Brass
1 Forbidden Orchard
1 Exotic Orchard
1 Jungle Shrine
1 Crumbling Necropolis
1 Arcane Sanctum
1 Seaside Citadel
1 Savage Lands
1 Polluted Delta
1 Flooded Strand
1 Wooded Foothills
1 Bloodstained Mire
1 Windswept Heath
1 Bloodcrypt
1 Strip Mine
1 Wasteland
1 Reliquirey Tower
3 Island
1 Forest
1 Swamp
1 Mountain
1 Plains