Flint Marko, The Sandman

Flint Marko, The Sandman's power and
toughness are each equal to the number of lands
you control.
{1}{r}{g}: You may have any number of lands you control phase out. If you do, Flint Marko,
The Sandman deals that much damage to any
target. (While they're phased out, they're treated as
though they don't exist. They phase in before you
untap during your untap step.)