In a game of Magic, there are normally seven zones: library, hand, battlefield, graveyard, stack, exile, and command. Each player has his or her own library, hand and graveyard. The rest of the zones are shared by all players.

If you use Act of Aggression to steal your opponent’s Hollowhenge Spirit, you don’t get to remove any other creature from combat, because control changes do not cause Hollowhenge Spirit’s or any permanents’ enters-the-battlefield abilities to trigger. This is because control-changing is not re-entering the battlefield. There’s only one battlefield, and the creature never left it; it just has a different controller now.

Today’s Rules Tip written by
Jorge Pinto, Level 1 Judge from Santiago, Chile