God killinger

When God killinger enters the battlefield creatures lose indestructibly and then God killing deals four damage to each creature your opponent's control. Each opponent that controls a god loses the game.
{10} You lose X life where X is the number of creatures you control. If you do not die from the damage you win the game.
If you would die from the damage put your hand in your graveyard and you put all but one land and one non-land permanent in your graveyard then you exile your graveyard. Your life to