Choedan Kal

Choedan Kal Enters the battlefield tapped.
You may have up to two artifacts named Choedan
Kal in your deck and on the battlefield.
{t}: Add {c}{c}.
Tap two untapped artifacts named Choedan Kal:
Add X mana of any one color to your mana pool,
where X is the number of lands you control.