Riven, the Exile

When Riven, the Exile enters the battlefield,
create a Runic Blade artifact token with "Equip {3}" and "Equipped creature gets +2/+0 and
gains first strike."
{1}{w}: Attach target equipment to Riven, the
Exile.
{b}, {t}, Destroy an equipment attached to this
card: target opponent loses 3 life.