Lumberslicer

When Lumberslicer enters the battlefield, put a smog counter on target land you control and target land you don't control.
{1}{b}: Put a smog counter on target land you control that doesn't have a smog counter on it and target land you don't control that doesn't have a smog counter on it.
{2}{g}{g}, {t}: Destroy each land with a smog counter on it.