Mount Targon

Mount Targon enters the battlefield tapped unless you control only Mountain lands.
When this land enters the battlefield, return a land you control to its owner's hand.
{t}: add {r}{r} to your mana pool.
Like any place of myth, Mount Targon is a beacon to dreamers, madmen and questors of adventure. Those who survive the journey to the foot of the titanic mountain almost never speak of what they have seen.