Luciela, Timoria

This creature has Double Strike and Trample as long as it is attacking.
{b}: Transform this creature.
{b}{b}{b}: Put a 3/3 black Darkness Demon creature token into play under your control.
{b}{b}{b}{b}: Destroy target nonland, nonenchantment permament.
"You are before the master of terror. Ahahaha!"