Here is extended deck used in 2010 world championships: Luis Scott-Vargas's Four-Color Control
I like this deck but want to try to modify to to either a three-color control or a five color control. Any suggestions
Main Deck
60 cards
1 Cascade Bluffs
2 Creeping Tar Pit
3 Island
4 Vivid Creek
2 Vivid Marsh
3 Vivid Meadow
1 Mountain
2 Mystic Gate
4 Reflecting Pool
2 Scalding Tarn
2 Sunken Ruins
26 lands
2 Wurmcoil Engine
3 Wall of Omens
5 creatures
2 Cruel Ultimatum
4 Lightning Bolt
4 Mana Leak
1 Path to Exile
4 Cryptic Command
1 Day of Judgment
4 Esper Charm
3 Jace, the Mind Sculptor
4 Preordain
2 Volcanic Fallout
29 other spells
Sideboard
1 Celestial Purge
2 Runed Halo
3 Thoughtseize
2 Condemn
1 Day of Judgment
1 Identity Crisis
1 Jace Beleren
1 Negate
2 Vendilion Clique
1 Volcanic Fallout
15 sideboard cards