iMtG Server: Gathering

Green White Exalted 60 cards, 0 sideboard 4 {Cavern of Souls} 4 {Cathedral of War} 5 {Plains} 4 {Sunpetal Grove} 5 {Forest} 22 lands 2 {Kessig Cagebreakers} 2 {Hero of Bladehold} 3 {Sublime Archangel} 3 {Silverblade Paladin} 3 {Champion of Lambholt} 4 {Knight of Glory} 4 {Avacyn's Pilgrim} 4 {Birds of Paradise} 25 creatures 4 {Faith's Reward} 4 {Rancor} 2 {Ajani, Caller of the Pride} 3 {Oblivion Ring} 13 other spells Sideboard

I am trying to figure out the main deck before I work on the sideboard. I am looking for a way to add {mirran crusader} but I don't know what I would take out.