Origiro the Scaled City

Origiro the Scaled City enters the battlefield
tapped with four brick counters on it.
As long as Origiro has a brick counter on it,
it's a land that is a Mountain, Plains, and Swamp.
Whenever one or more creatures attack you
remove a brick counter from Origiro.
As long as Origiro is a creature, it has flying and "Creatures without flying can't attack."