The Drained Sea

The Drained Sea enters the battlefield tapped.
{ut}, pay one life: Add one mana of any color. Put
one charge counter on The Drained Sea.
{2}, Remove a Charge counter from The
Drained Sea: tap The Drained Sea.
At the beginning of your upkeep,
you lose life equal to the number of
lands in graveyards minus the number
of charge counters on the drained sea.