I dunno, Giz. Let's be unimaginative and take something a little closer to Gordon Lin's deck (He won GP australia). It's, technically, 5 color. 5cU.
Red
3 Pandamonium
Green
3 Saporling burst
White
4 Replenish
Black
4 Duress
3 Demonic Consultation
Blue
4 Mystical tutor
4 Force of Will
4 Intuition
4 Frantic search
4 Brainstorm
Land
4 Ancient Tomb
4 City of Brass
4 Gemstone Mine
4 Tundra
4 Underground Sea
3 City of Traitors
This deck has 3 types of cards:
1: the combo
4x replenish
3x pandemonium
3x saproling burst
It only plays with 3 of each, because they're useless in your hand, and it only needs one of each in the graveyard
2: Defenders
4x Force of will
4x Duress
4x Brainstorm (Anti-duress tech)
Let's stop their stuff!
3: Searchers
3x Demonic Consultation
4x Frantic Search
4x Brainstorm (Twice, these appear)
4x Intuition (It even puts them in the graveyard for you)
4x Mystical tutor
This deck trades EVERYTHING for the ability to find the combo. There are almost twice as many search cards as there are cards in the combo. You WILL get what you need, with these to help you. This is the difference between Lin's and Hahn's versions. Hahn's tried to stop you, and then go off, but this deck can often outrace trix, so it pulled alot of the counterspells for searchers and helpers. Compare High Tide to Academy decks, you'll see a similar pattern.