Welcome to the Official Redemption® Message Board!
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. The deck is always reshuffled when this occurs unless a card states otherwise.
On a semi-related note, do all cards that a player discards either from an ability (Primary Objective) or game rule (reducing hand to 8 at end of turn) have to be made known to the opponent(s) when they are discarded?
Cards removed from a draw pile or player’s hand must be shown to all players before being discarded.