Tower of Druaga

{t}: Add three mana of any one color to your mana pool. Put a counter on it, then you take damage equal to twice the number of counters on it.
At the beginning of your upkeep, you lose life equal to the number of counters on Tower of Druaga.
The Tower is divided in 8 shrines, in order: Tin, Lead, Iron, Bronze, Silver, Gold, Diamond, Sky.