Harsh Echoes

When Harsh Echoes enters the battlefield, exile target creature card from your graveyard.
{5}{b}: Create a token that's a copy of a creature card exiled by Harsh Echoes, except it's a 4/4 white Zombie.
{5}{u}: Create a token that's a copy of a creature card exiled by Harsh Echoes, except it's a 5/5 black Demon with flying and "At the beginning
of your upkeep, you lose 3 life."