Arcane Sanctum [Shards of Alara]

Set: Shards of Alara Type: Land Rarity: Uncommon Arcane Sanctum enters the battlefield tapped.{T}: Add {W}, {U}, or {B}. "We must rely on our own knowledge, not on the dogma of the seekers or the mutterings of the sphinxes." —Tullus of Palandius