Zone

Your Zone is defined as the Skirmish, Trap, Zone and Spawn Spaces on your side of the Arena. Your Grave, Hand and Deck are not in your Zone; however, these are all things that a Zone Card can affect, as well as your Zone.

Zones can be mentioned in a card's effect, e.g. the archetype Heralds have effects that give each other increased ATK, HP and other bonuses by being in the same Zone as each other.