Ulmak'rhak, the Scorched Earth

Vigilance
Whenever Ulmak'rhak, the Scorched Earth enters
the battlefield, X target lands becomes basic mountains, for as long Ulmak'rhak, the
Scorched Earth is in play.
Ulmak'rhak, the Scorched Earth gets +1/+1 for
each mountain in play.
{t}: Add one {r} for each mountain in play,
lose life equal to the mana gained.