Secluded Cottage

{t}: Add {c} to your mana pool.
Delirium - At the beginning of your end step, if there are four or more card types among cards in your graveyard, you may pay {x}{b}{g}. If you do, search your library for a Shaman or Wizard creature card with converted mana cost X or less and put it onto the battlefield, then shuffle your library.
The woods are quite safe... just not for humans.