When the zone is instructed to be Revealed without indicating a number of cards, that refers to “All cards currently in the specified zone.” Example: A card reads “Choose an opponent and reveal your hand. That player picks a card in your hand. You may play the rest this turn, ignoring their costs.” When instructed to reveal their hand, that player reveals the cards currently in their hand. 1. The Revealed state is applied to those cards. Any further cards added to that zone after the instruction has been executed do not become Revealed.
§ 424.3.a Core Rules PDF (officieel)
§ 424 Reveal
§ 424.3 This action is formatted as "Reveal cards from [zone]." or “Reveal [Zone].” Example: "Reveal 2 cards from the top of your Main Deck" would be executed by taking the two cards from the top of your Main Deck, and then presenting them to all players to clearly read and understand at the table. Then, wh…
