A search card allows you to look at the cards in a deck, artifact pile, or a player’s hand. Searching implies only you see the targeted card(s). Reveal means that all players see the targeted card(s). Random selection from an opponent’s hand or selecting from your own hand are not considered a search or a reveal. You may not look at cards in any draw pile or discard pile (other than the top card of the discard pile) unless a special ability on a card allows a player to search a deck (see Beginning a Game in the rulebook [p. 5]).
A revealed card is considered to be in the same location from which it is revealed. Revealing a card makes the card visible to all players.