Last Updated: 2026-03-30

187.3. Control can be Contested through the course of play.

187.3.a. Contested is a temporary status applied to the battlefield when a Unit controlled by a Player who does not currently Control that Battlefield Moves or otherwise becomes present there.
187.3.a.1. Units moving to or being played to a battlefield apply Contested status if that battlefield is not already contested and that Unit's controller does not already control that battlefield.
187.3.b. A Battlefield remains Contested until Control is established or re-established.
187.3.c. The state of a Battlefield being Contested is used to determine when Combat should occur, when a Non-Combat Showdown should occur, and when Control will change.
187.3.d. At this time Game Effects cannot reference this status.