Wishing-Star Crater

{t}: Add {c}. Wishing-Star Crater doesn't untap
during its controller's next untap step.

As long as you don't control another nonbasic land,
Wishing-Star Crater has "{t}: Add one mana of any
color."

The final resting place for thousands of wayward
wishing stars offers its aid to the modest and
pure-hearted.