Westvale Worshipper

{t}: Reveal cards from the top of your library until you reveal a creature card. If that creature card's name is Westvale Worshipper, put it onto the battlefield tapped. Then, each player loses X life and you gain X life, where X is the number of Westvale Worshippers you control.
A deck can contain any number of cards named Westvale Worshipper.