Command the Dreadhorde

Choose any number of target creature and/or planeswalker cards in graveyards. Command the Dreadhorde deals damage to you equal to the
total mana value of those cards. Put them onto
the battlefield under your control.
—
In a forgotten timeline, King Sombra ravaged the
world with an army of mind controlled slaves, forcing
those who defended it to fight the ones they loved.