Coresante, Seat of the Council

Coresante, Seat of the Council enters the battlefield tapped.
{t}: Add {1} to your manapool.
{5}{t}: Add {x} to your manapool, where X is the number of Artifacts you control.
Behold the center of technology and civilization that is Coresante. May its knowledge and safety spread out to the outer edges of Civilization.