Orcish Smasher

When Orcish Smasher enters the battlefield, each player shuffles their hand into his or her library and draws 7 cards face down.
Players hands are a hidden zone. (They are placed in a face down pile, hidden from both players.)
Reveal a card from your hand: You may play that card. If you don't, shuffle it back into your hand. Either player may activate this ability. (This ability does not give you the ability to cast spells as though they had flash)