Territorial Fight

When you cast this spell, each opponent may tap a land. Whenever an opponent does, you may untap a land. You and each opponent who tapped a land searches their library for a creature card and puts it onto the battlefield face down. Then, each player shuffles their library. Pick an opponent. You and that opponent turn your face down cards face up and the creatures fight. The winner's controller may search their library for a basic land card and put it onto the battlefield tapped.
If they do, they shuffle