Murphy Pendelton, Atonement

You can cast this card for no cost if you tap one silent hill you control
When Murphy Pendleton, Atonement is casted you put a down pour marker on all lands you may remove that marker and untap that land it becomes {u/b} and you may tap that land during your turn for mana.
{t} you exile cards from your deck equal to the amount of downpour markers and you may add exiled cards to your hand by removing down pour markers during your end step if this ability was activated return all exiled cards to your