iMtG Server: Gathering

Spirit Control 60 cards, 0 sideboard 4 {Island} 4 {Swamp} 4 {Plains} 4 {Glacial Fortress} 4 {Hallowed Fountain} 4 {Isolated Chapel} 4 {Godless Shrine} 28 lands 3 {Geist of Saint Traft} 3 {Obzedat, Ghost Council} 4 {Drogskol Captain} 4 {Tormented Soul} 14 creatures 3 {Liliana of the Veil} 3 {Sorin, Lord of Innistrad} 4 {Murder} 4 {Victim of Night} 4 {Lingering Souls} 18 other spells Sideboard

Looks solid maybe {Doomed Traveler}

Or possibly2-3  {Intangible Virtue}

Being control, I would look at using {Beckon Apparition} as an instant chump blocker, or to remove an {Unburial Rites} target, or pesky undying creature.

Id say {doomed traveler} over {tormented soul}