Well I figured I'd join in on the EDH, as my casual playgroup has EDH decks, cept for me. This is what I pulled together from my card collection, there are a few mill combos I've heard of so I'm looking for those pieces..
If you want to go with a milling strategy, I wouldn't play Circu. He just doesn't cut the mustard, as his ability is practically useless in EDH.
I would try a general like Oona, Queen of the Fae. Not only is she able to beat down when needed, but she provides a great mana sink to munch away at libraries while providing tokens in the process. You can also accelerate the milling fun with cards like Ashnod's Altar and Painter's Servant. Dire Undercurrents combos beautifully with Oona as well.
The deck!
1 Polluted Mire
1 Drowned Catacomb
1 Jwar Isle Refuge
1 Vivid Marsh
1 Dimir Aqueduct
14 Swamp
15 Island
1 Ghost-Lit Stalker
1 Skeletal Vampire
1 Ghul Draz Specter
1 Vampire Nighthawk
1 Ghastlord of Fugue
1 Cemetary Puca
1 Malakir Bloodwitch
1 Drowner Initiate
1 Phyrexian Rager
1 Kalitas, Bloodchief of Ghet
1 Nemesis of Reason
1 Ravenous Rats
1 Inkwell Leviathan
1 Extractor Demon
1 Lorthos, the Tidemaker
1 Mindleech Mass
1 Szadek, Lord of Secrets
1 Lich Lord of Unx
1 Kederekt Leviathan
1 Clone
1 Mulldrifter
1 Circu, Dimir Lobotomist
1 Dralnu, Lich Lord
1 Doom Blade
1 Font of Mythos
1 Induce Paranoia
1 Hideous End
1 Memory Erosion
1 Logic Knot
1 Scepter of Fugue
1 Mind Funeral
1 Boomerang
1 Twincast
1 Terror
1 Deathrender
1 Ponder
1 Beseech the Queen
1 Soul Manipulation
1 Ancestral Vision
1 Brainbite
1 Sign in Blood
1 Remand
1 Consult the Necrosages
1 Counterspell
1 Mind Shatter
1 Bad Moon
1 Glimpse the Unthinkable
1 Howling Mine
1 Cruel Edict
1 Whispersilk Cloak
1 Sadistic Sacrament
1 Traumatize
1 Profane Command
1 Archive Trap
1 LilianaVess
1 Broken Ambitions
1 Slaughter Pact
1 Careful Consideration
1 Soulquake
1 Armillary Sphere
1 Dimir Signet
1 Explorer's Scope
UBOona, Queen of the FaeBU
Modern -
WUBEsper TempoBUW
RHowling FlareR
WBSuicidal VictoryWB
Legacy-
UWGScapedraziGWU
WUBEsper StonebladeBUW
I would try a general like Oona, Queen of the Fae. Not only is she able to beat down when needed, but she provides a great mana sink to munch away at libraries while providing tokens in the process. You can also accelerate the milling fun with cards like Ashnod's Altar and Painter's Servant. Dire Undercurrents combos beautifully with Oona as well.
Hinder/Tunnel Vision
Dire Undercurrents (nice idea)
Painter's Servant/Grindstone (expensive though)
UBOona, Queen of the FaeBU
Modern -
WUBEsper TempoBUW
RHowling FlareR
WBSuicidal VictoryWB
Legacy-
UWGScapedraziGWU
WUBEsper StonebladeBUW