Sarevok's Tome [Commander Legends: Battle for Baldur's Gate]

Set: Commander Legends: Battle for Baldur's Gate Type: Artifact Rarity: Rare Cost: {4} When Sarevok's Tome enters the battlefield, you take the initiative.{T}: Add {C}. If you have the initiative, add {C}{C} instead.{3}, {T}: Exile cards from the top of your library until you exile a nonland card. You may cast that card without paying its mana cost. Activate only if you've completed a dungeon.