Ender Bringer

Ender Bringer comes into play tapped or pay {4}.
{w}{w}{u}{u}{b}{b}{r}{r}{g}{g}{g},{t}: Sacrifice Ender Bringer. Target player losses the game unless he/she sacrifices their land or creatures. They cannot be regenerated.
If he/she sacrificed land or creatures, bring Ender Bringer back onto the battlefield. It does not tap.