Nightmare, The Worst

When Nightmare enters the battlefield, sacrifice it unless it escaped.
When nightmare enters the battlefield or attacks it gains fear or you create a gold token. Then up to three target lands become gold tokens an lose all other abilities.
Escape—{b}{b}{b}{b}, Exile five other cards from
your graveyard.
"His need to destroy everything for it to become
rich, has exceeded the underworld."
—Erebos, God of the Dead