Vena the Uncaring

Vena the Uncaring enters the battlefield tapped.
{w}{w}{u}{u}{b}{b}{r}{r}{g}{g}, {t}, sacrifice Vena the Uncaring: Target player loses the game.
"You mortals intrigue me. You believe you can change worlds, yet turn and run to gods when faced with the smallest adversity. A shame there are no gods left to
save you now."