Rule 190.4
Control is established by having Units at a Battlefield at the end of a Showdown or Combat after applying the contested status.
- 190.4.a If a player controls Units at a Battlefield, outside of Combat, they maintain Control of that Battlefield for as long…
- 190.4.b While a Combat or Showdown is ongoing at a Battlefield, Control of that Battlefield cannot change until instructed by…
- 190.4.c If a player has no Units at a Battlefield and the turn is in an Open state, they lose Control of that Battlefield in…