Chronic Flooding | Magic: The Gathering
Formats Chronic Flooding is Legal in
Official Oracle Text for Chronic Flooding
Whenever enchanted land becomes tapped, its controller puts the top three cards of his or her library into his or her graveyard.
Official Rulings for Chronic Flooding
10/1/2012 : Chronic Flooding becoming attached to a tapped land won't cause its ability to immediately trigger. That land must go from untapped to tapped.