D5C! Stylish, fun, and _really_ cool to play. Though your opponents get annoyed if you play the monstrosity too much.
Basically, Donias Five Color is a counterspell, Wrath of God, recursion deck with a very low creature count and very few routes to victory. Personally, I use two Grindstones and three Gaea's Blessings as my kill.
A middling defensive line-up includes Wrath of God, Swords the Plowshares, Wall of Blossoms, etc... Counter base with such cards as Counterspell, Mana Leak, Dissipate, Dismiss, etc... Finally, a bit of utility cards, Disenchant, Creeping Mold, and the like. A bit of card drawing can be cool, too. Whispers, obviously, maybe Accumulated Knowledge.
I'm not gonna give you a decklist, but you can get one off an old issue of the Duelist (not sure which one), or maybe somewhere on the Dojo. Look up 'D5C.'
"Crunch time!