Arcane Sanctum

Land
Arcane Sanctum enters the battlefield tapped.
{T}: Add {W}, {U}, or {B} to your mana pool.¹
"We must rely on our own knowledge, not on the dogma of the seekers or the mutterings of the sphinxes."
—Tullus of Palandius
Illus. Anthony Francisco

Format Legality	Legal in Vintage, Legacy, Extended, Standard
Printings (1/9)	Shards of Alara (Uncommon)