Door to Nothingness

Door to Nothingness enters the battlefield tapped.
{w}{w}{u}{u}{b}{b}{r}{r}{g}{g}, {t}, Sacrifice Door to Nothingness: Target player loses the game.
Every time you die, your grip on this world slips away. Every time you die, your friends forget you a little more. Your life will end here, in a world where nobody remembers you...