Meknar's Ritual

When Meknar's Ritual enters the battlefield
discard your hand and you lose half your life
rounded down.
Whenever a player plays a card, you may search
your library for a card of the same card type with
a converted mana cost equal to or less than the
card played and put it into your hand. Then
shuffle your library. You may play that card
without paying its mana cost.