Copse Lurker

Endemic {w/b} (When a Plains or Swamp enters
the battlefield under your control, you may put
this card from your hand onto the battlefield
tapped. If you do, you lose life equal to its
converted mana cost).
Whenever a nonbasic land enters the
battlefield you may pay {g}. If you do, untap
Copse Lurker and gain 2 life.