Miraynos, the Bleak Tomb

When Miraynos, the Bleak Tomb enters the
battlefield, exile a card from your graveyard and
put a shadow counter on it. If you don't,
Miraynos, the Bleak Tomb enters the battlefield
tapped.
{t}: Add {c}.
{2}, {t}: Add {c} for each card you own in exile
with a shadow counter on it.