Amriel, The Fallen

When Amriel, The Fallen enters the battlefield, if a creature has died this turn, put a +2/+3 counter on Amriel, The Fallen.
{4}{b}{t}: Amriel, The Fallen gains Deathtouch, Flying, and Doublestrike
Her eyes opened and took in her surroundings. The darkness of her eternal tomb crept into her black wings, making them as dark as the darkest corners of the earth.