Cavern of Souls [Avacyn Restored] Thopter Dragons come not in packs

Dragons come not in packs or in herds but in storms

Set: Weatherlight Type: Land Rarity: Uncommon Gemstone Mine enters the battlefield with three mining counters on it

Set: Magic Player Rewards 2001 Type: Token Creature — Bear Rarity: Common The last thing a poacher in the Krosan Forest hears is the brutal sound of claws tearing flesh

sacrifice a creature

Cavern of Souls [Avacyn Restored] Thopter Dragons come not in packsSet: Avacyn Restored Type: Land Rare Cost: As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.