iMtG Server: Gathering

4-color Izzet Control 60 cards, 0 sideboard 4 {Terramorphic Expanse} 2 {Sulfur Falls} 4 {Mountain} 4 {Island} 4 {Forest} 4 {Plains} 22 lands 3 {Llanowar Elves} 3 {Viridian Emissary} 2 {Snapcaster Mage} 2 {Ondu Giant} 2 {Niv-Mizzet, Dracogenius} 2 {Niv-Mizzet, the Firemind} 14 creatures 2 {Lightning Bolt} 2 {Unsummon} 2 {Think Twice} 3 {Mana Leak} 2 {Hindering Light} 2 {Train of Thought} 2 {Slagstorm} 2 {Invoke the Firemind} 2 {Oblivion Ring} 3 {Curiosity} 2 {Isochron Scepter} 24 other spells Sideboard

First,  {Evolving Wilds} is a for of if your playing 4 colors basic lands.

I have terramorphic expanse. It does the exact same thing

Which is why you also run Evolving Wilds at 2+. Just because a card does the exact thing doesn't mean that running more isn't good. Running those cards get the lands you need earlier on and allow for consistency. I would say run less If you had a better mana base with more mana fixing but your mana base is all over the place and is practically filled with basic lands.