(4.12) The Hand
Any reference made to a player’s “hand”
refers to that hand as a single entity, and does
not refer to any of the individual cards in that
hand. Thus, it is possible to discard a “hand”
of 0 cards. Further, if you do discard your
“hand,” you are not considered to have discarded
any of the individual cards that make
up that hand (for the purpose of initiating other
card effects).
Revealing your hand is not considered revealing
any of the individual cards in your hand,
and adding a card to a revealed hand is not
considered revealing that card.
Note that it is possible, through card effects,
to reveal individual cards from a hand that is
revealed in its entirety.