The Promised Land

As Unclaimed Territory enters, choose a creature type.
{t}: Add {c}.
{t}: Add one mana of any color. Spend this
mana only to cast a creature spell of the chosen type.

"Look down from your holy habitation, from heaven, and bless your people Israel and the ground
you have given as you swore to our fathers, a land flowing with milk and honey." —Deut 26:15