City of Shadows

Land
{T}, Exile a creature you control: Put a storage counter on City of Shadows.
{T}: Add {X} to your mana pool, where X is the number of storage counters on City of Shadows.¹
Illus. Tom Wänerstrand

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: It is considered "tapped for mana" if you play its mana ability, even if it has zero counters on it.
• 10/4/2004: The counters do not go away when it is used.
• 10/4/2004: Can be tapped for zero mana if it has zero counters.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/2)	The Dark (Rare)