Pera, Kingdom of the Night

{t}: Add {r} to your mana pool.
{t}: Add {r}{r} to your mana pool if you control
one more Kingdom Land.
{t}: Add {r}{r}{r} to your mana pool if you control two or more Kingdom Lands.
As long as you control two or more Kingdom Lands, Yuma, Kingdom of the End is a 6/6 red creature with haste and menace in addition to its other card types.