Triad of Fates

Click here for visual deck (with images)
Click here for my EDH Commander decks
 
The trick to making Triad work is to run a ton of mana ramp and untap effects.
• Creatures with good ETB/LTB effects
• Copy general's ability (rings, bracers)
There's an old 1989 board game called Advanced Heroquest that has little "Fate" counters, which I use in my Triad games.
 
Mana Acceleration (17): General (1): Spells (16): Sideboard (Omitted/Cut card ideas):
1 Arcane Signet 1 Triad of Fates 1 Conjurer's Closet 1 Trusty Retriever
1 Burnished Hart   1 Helm of the Host 1 Lotleth Giant
1 Charcoal Diamond Creatures (30): 1 Illusionist's Bracers 1 Sun Titan
1 Coldsteel Heart 1 Duplicant 1 Jandor's Saddlebags 1 Angel of Invention
1 Commander's Sphere 1 Meteor Golem 1 Lithoform Engine 1 Forbidding Spirit
1 Marble Diamond 1 Precursor Golem 1 Magewright's Stone 1 Daring Archaeologist
1 Orzhov Cluestone 1 Angel of Despair 1 Minion Reflector 1 Blessed Sanctuary
1 Orzhov Keyrune 1 Ashen Rider 1 Oblivion Stone 1 Skyclave Apparition
1 Orzhov Locket 1 Restoration Gearsmith 1 Panharmonicon 1 Angelheart Protector
1 Orzhov Signet 1 Abhorrent Overlord 1 Puppet Strings 1 Unwinding Clock
1 Solemn Simulacrum 1 Grave Titan 1 Rings of Brighthearth 1 Chittering Witch
1 Unstable Obelisk 1 Karfell Kennel-Master 1 Staff of Domination 1 Urbis Protector
1 Vessel of Endless Rest 1 Marionette Master 1 Sword of the Paruns 1 Angelic Rocket
1 Knight of the White Orchid 1 Overseer of the Damned 1 Thornbite Staff 1 Noosegraf Mob
1 Kor Cartographer 1 Priest of the Blood Rite 1 Thousand-Year Elixir 1 Cathars' Crusade
1 Loyal Warhound 1 Rage-Scarred Berserker 1 Umbral Mantle 1 Kaya, Ghost Assassin
1 Stoic Farmer 1 Sepulchral Primordial   1 Myr Battlesphere
  1 Angel of Serenity   1 Geist-Honored Monk
Lands (36): 1 Angel of the Ruins   1 Kytheon, Hero of Akros
1 Scrubland 1 Archon of Coronation   1 Cloudgoat Ranger
1 Godless Shrine 1 Captain of the Watch   1 Skeletal Vampire
1 Snowfield Sinkhole 1 Cavalier of Dawn   1 Spirit Bonds
1 Fetid Heath 1 Evangel of Heliod   1 Rune-Scarred Demon
1 Orzhov Basilica 1 Guardian Archon   1 Sidisi, Undead Vizier
1 Agadeem's Awakening // Agadeem, the Undercrypt 1 Hero of Goma Fada   1 Pentavus
1 Command Tower 1 Knight-Captain of Eos   1 Thopter Squadron
1 Guildless Commons 1 Luminate Primordial   1 Triskelion
1 Malakir Rebirth // Malakir Mire 1 Radiant Solar   1 Dark Hatchling
1 Myriad Landscape 1 Rambunctious Mutt   1 Nekrataal
1 Sejiri Shelter // Sejiri Glacier 1 Resolute Archangel   1 Reveille Squad
1 Thawing Glaciers 1 Selfless Squire   1 Worn Powerstone
1 Windbrisk Heights 1 Solitude   1 Nacre Talisman
1 Winding Canyons 1 Subjugator Angel   1 Onyx Talisman
10 Swamp     1 Wispweaver Angel
11 Plains     1 Restoration Angel
1 Sol Ring     1 Glimmerpoint Stag