Winter's Night | Magic: The Gathering
Formats Winter's Night is Legal in
Official Oracle Text for Winter's Night
Official Rulings for Winter's Night
10/1/2008 : Winter's Night doesn't track the lands' controllers. If an affected land changes controllers before its old controller's next untap step, Winter's Night will prevent it from being untapped during its new controller's next untap step.
10/1/2008 : This has the supertype world. When a world permanent enters the battlefield, any world permanents that were already on the battlefield are put into their owners' graveyards. This is a state-based action called the "world rule." The new world permanent stays on the battlefield. If two world permanents enter the battlefield at the same time, they're both put into their owners' graveyards.