Peaks Of The Striken

Peaks Of The Striken enters the battlefield
tapped unless you have a land in your graveyard.
{t}: Untap target Mountain or Swamp.
{5}{b/r}{b/r}, {t}: Destroy target land. If that land's controller also controls a planeswalker,
Peaks Of The Striken deals 5 damage to any
target. If a creature that was dealt damage this
way dies this turn, exile that creature instead.