Dome of Storms

Dome of Storms comes into play tapped unless
you reveal an elemental card from your hand.
{t}: Add {u} or {r}.
{t}: Add one man of any color to your mana pool.
This may only be used to cast an Elemental spell.
"They are built in inhospitable land. By those cursed
to forget where their work was done. Abandoned
until all who worked on it have passed, found by
latter generations. They say there should be more."